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Mercer County, New Jersey (NJ)

County population in 2016: 371,023 (97% urban, 3% rural); it was 350,761 in 2000
County owner-occupied with a mortgage or a loan houses and condos in 2010: 64,356
County owner-occupied free and clear houses and condos in 2010: 23,344
County owner-occupied houses and condos in 2000: 84,325
Renter-occupied apartments: 45,455 (it was 41,482 in 2000)
% of renters here:

33%
State:

35%

Land area: 226 sq. mi.

Water area: 2.9 sq. mi.

Population density: 1642 people per square mile   (very high).

Mar. 2016 cost of living index in Mercer County: 114.5 (more than average, U.S. average is 100)

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Industries providing employment: Professional, scientific, management, administrative, and waste management services (36.4%), Finance, insurance, real estate, and rental and leasing (11.9%).

Type of workers:

  • Private wage or salary: 66%
  • Government: 3%
  • Self-employed, not incorporated: 31%
  • Unpaid family work: 0%
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Mercer County races chart

Races in Mercer County, New Jersey:

  • White Non-Hispanic Alone (50.3%)
  • Black Non-Hispanic Alone (19.7%)
  • Hispanic or Latino (17.1%)
  • Asian alone (11.0%)
  • Two or more races (1.6%)
Median resident age:  38.5 years
New Jersey median age:  39.5 years
Males: 181,379  (48.9%)
Females: 189,644  (51.1%)
Mercer County, NJ forum
Recent posts about Mercer County, New Jersey on our local forum with over 2,000,000 registered users. Mercer County is mentioned 958 times on our forum:
Best Singles or Dance Clubs/Bars in Mercer County?  (2 replies)
"Central Jersey"  (137 replies)
Looking for down to earth suburbs in NJ (Westfield??)  (37 replies)
Mercer County - Big Potential?  (8 replies)
What’s the story with Camden?  (66 replies)
Property taxes - anyone being priced out of your home?  (261 replies)

Mercer County,NJ real estate house value trend


Average household size:
Mercer County:

2.0 people
New Jersey:

3 people
Estimated median household income in 2016: $77,650 ($56,612 in 1999)

This county:

$77,650
New Jersey:

$76,126

Median contract rent in 2016 for apartments: $1,009 (lower quartile is $769, upper quartile is $1,375)
This county:

$1009
State:

$1125


Estimated median house or condo value in 2016: $284,600 (it was $143,600 in 2000)
Mercer:

$284,600
New Jersey:

$328,200
Lower value quartile - upper value quartile: $189,700 - $447,900

Mean price in 2016:

Detached houses: $424,250
Here:

$424,250
State:

$401,764

Townhouses or other attached units: $212,902
Here:

$212,902
State:

$266,552

In 2-unit structures: $191,960
Here:

$191,960
State:

$327,480

In 3-to-4-unit structures: $106,967
Here:

$106,967
State:

$297,734

In 5-or-more-unit structures: $211,869
Here:

$211,869
State:

$275,779

Mobile homes: $302,174
Here:

$302,174
State:

$82,857
Median monthly housing costs for homes and condos with a mortgage: $2,190
Median monthly housing costs for units without a mortgage: $949

Institutionalized population: 6,065
Mercer County, NJ map from a distance

Health of residents in Mercer County based on CDC Behavioral Risk Factor Surveillance System Survey Questionnaires from 2003 to 2012:

General health status score of residents in this county from 1 (poor) to 5 (excellent) is 3.6. This is about average.
74.4% of residents exercised in the past month. This is about average.
43.7% of residents smoked 100+ cigarettes in their lives. This is about average.
73.5% of adult residents drank alcohol in the past 30 days. This is about average.
77.4% of residents visited a dentist within the past year. This is more than average.
Average weight of males is 193 pounds. This is about average.
Average weight of females is 164 pounds. This is about average.
11.1% of residents keep firearms around their homes. This is less than average.

Single-family new house construction building permits:

  • 2000: 1210 buildings, average cost: $104,300
  • 2001: 1172 buildings, average cost: $100,400
  • 2002: 1126 buildings, average cost: $101,900
  • 2003: 778 buildings, average cost: $93,300
  • 2004: 938 buildings, average cost: $115,300
  • 2005: 1221 buildings, average cost: $107,200
  • 2006: 578 buildings, average cost: $122,000
  • 2007: 466 buildings, average cost: $161,500
  • 2008: 325 buildings, average cost: $200,500
  • 2009: 178 buildings, average cost: $255,300
  • 2010: 180 buildings, average cost: $225,300
  • 2011: 135 buildings, average cost: $255,400
  • 2012: 110 buildings, average cost: $283,900
  • 2013: 191 buildings, average cost: $281,300
  • 2014: 239 buildings, average cost: $214,700
Number of permits per 10,000 residents
Average permit cost
Presidential Elections Results

Graphs represent county-level data. Detailed 2008 Election Results

Median real estate property taxes paid for housing units with mortgages in 2016: $7,359 (2.6%)
Median real estate property taxes paid for housing units with no mortgage in 2016: $7,277 (2.6%)

Mercer County household income distribution in 2013 Mercer County home values distribution in 2013 Mercer County contract rent distribution in 2013
Percentage of residents living in poverty in 2016: 11.1%
Mercer County:

11.1%
New Jersey:

10.4%
(5.5% for White Non-Hispanic residents, 19.9% for Black residents, 21.9% for Hispanic or Latino residents, 14.0% for American Indian residents, 78.2% for Native Hawaiian and other Pacific Islander residents, 15.2% for other race residents, 11.8% for two or more races residents)

Median age of residents in 2016: 38.5 years old
(Males: 37.2 years old, Females: 39.7 years old)
(Median age for: White residents: 45.9 years old, Black residents: 33.7 years old, American Indian residents: 37.9 years old, Asian residents: 38.0 years old, Hispanic or Latino residents: 29.5 years old, Other race residents: 35.9 years old)

Area name: Trenton-Ewing, NJ MSA
Fair market rent in 2006 for a 1-bedroom apartment in Mercer County is $850 a month.
Fair market rent for a 2-bedroom apartment is $1022 a month.
Fair market rent for a 3-bedroom apartment is $1221 a month.

Cities in this county include: Trenton, Ewing, Mercerville-Hamilton Square, Princeton, Mercerville, Hamilton Square, White Horse, Yardville-Groveville, Twin Rivers, Yardville.

Mercer County has a predicted average indoor radon screening level greater than 4 pCi/L (pico curies per liter) - Highest Potential

2012 air pollution in Mercer County:

Ozone (1-hour): 0.026 ppm (standard limit: 0.12 ppm). Near U.S. average.
Particulate Matter (PM2.5) Annual: 8.6 µg/m3(standard limit: 15.0 µg/m3). Near U.S. average.

Click to draw/clear Mercer County borders

Neighboring counties: Blackford County, Indiana , Dauphin County, Pennsylvania , Guernsey County, Ohio , Harrison County, Ohio , Sullivan County, Missouri .

Unemployment in September 2015:
Here:

4.8%
New Jersey:

5.4%

Unemployment by year
County total employment by year
County average yearly wages by year

Current college students: 28,687
People 25 years of age or older with a high school degree or higher: 89.0%
People 25 years of age or older with a bachelor's degree or higher: 42.7%

Number of foreign born residents: 79,895 (46.6% naturalized citizens)

Mercer County:

21.5%
Whole state:

22.5%
Year of entry for the foreign-born population Note: State values scaled to Mercer County population
  • 14,0882010 or later
  • 26,1052000 to 2009
  • 21,1281990 to 1999
  • 10,9531980 to 1989
  • 6,1171970 to 1979
  • 8,392Before 1970

Mean travel time to work (commute): 27.1 minutes

Percentage of county residents living and working in this county: 68.9%

Mercer County marital status for males Mercer County marital status for females

Housing units in structures:

  • One, detached: 70,858
  • One, attached: 33,494
  • Two: 6,585
  • 3 or 4: 4,371
  • 5 to 9: 6,015
  • 10 to 19: 11,346
  • 20 to 49: 3,561
  • 50 or more: 8,319
  • Mobile homes: 185

Housing units in Mercer County with a mortgage: 55,785 (998 second mortgage, 8,556 home equity loan, 226 both second mortgage and home equity loan)
Houses without a mortgage: 25,049

Here:

68.8% with mortgage
State:

67.5% with mortgage

Religion statistics for Mercer County

Religions Adherents in 2010
Year 2000 to 2010 Change
ReligionAdherentsCongregations
Catholic121,65026
Mainline Protestant29,63886
Evangelical Protestant17,27491
Other17,11538
Black Protestant5,14630
Orthodox1,9605
None173,730-
Mercer County Religion Details
Source: Clifford Grammich, Kirk Hadaway, Richard Houseal, Dale E.Jones, Alexei Krindatch, Richie Stanley and Richard H.Taylor. 2012. 2010 U.S.Religion Census: Religious Congregations & Membership Study. Association of Statisticians of American Religious Bodies. Jones, Dale E., et al. 2002. Congregations and Membership in the United States 2000. Nashville, TN: Glenmary Research Center.

Food Environment Statistics:

Number of grocery stores: 107
Mercer County:

2.94 / 10,000 pop.
State:

2.90 / 10,000 pop.

Number of supercenters and club stores: 2
Here:

0.05 / 10,000 pop.
New Jersey:

0.06 / 10,000 pop.

Number of convenience stores (no gas): 55
This county:

1.51 / 10,000 pop.
New Jersey:

1.76 / 10,000 pop.

Number of convenience stores (with gas): 23
Mercer County:

0.63 / 10,000 pop.
New Jersey:

0.81 / 10,000 pop.

Number of full-service restaurants: 270
This county:

7.42 / 10,000 pop.
State:

7.15 / 10,000 pop.

Adult diabetes rate:
Mercer County:

8.3%
New Jersey:

8.3%

Adult obesity rate:
Mercer County:

22.2%
State:

23.3%

Low-income preschool obesity rate:
Here:

20.1%
State:

18.0%

Agriculture in Mercer County:

Average size of farms: 82 acres
Average value of agricultural products sold per farm: $40,286
Average value of crops sold per acre for harvested cropland: $676.39
The value of nursery, greenhouse, floriculture, and sod as a percentage of the total market value of agricultural products sold: 50.01%
The value of livestock, poultry, and their products as a percentage of the total market value of agricultural products sold: 10.96%
Average total farm production expenses per farm: $50,113
Harvested cropland as a percentage of land in farms: 64.30%
Average market value of all machinery and equipment per farm: $45,689
The percentage of farms operated by a family or individual: 86.84%
Average age of principal farm operators: 56 years
Average number of cattle and calves per 100 acres of all land in farms: 2.14
Corn for grain: 3159 harvested acres
All wheat for grain: 646 harvested acres
Soybeans for beans: 8244 harvested acres
Vegetables: 722 harvested acres
Land in orchards: 120 acres

Earthquake activity:

Mercer County-area historical earthquake activity is near New Jersey state average. It is 87% smaller than the overall U.S. average.

On 1/16/1994 at 01:49:16, a magnitude 4.6 (4.6 MB, 4.6 LG, Depth: 3.1 mi, Class: Light, Intensity: IV - V) earthquake occurred 70.1 miles away from Mercer County center
On 10/7/1983 at 10:18:46, a magnitude 5.3 (5.1 MB, 5.3 LG, 5.1 ML, Class: Moderate, Intensity: VI - VII) earthquake occurred 256.6 miles away from the county center
On 1/16/1994 at 00:42:43, a magnitude 4.2 (4.2 MB, 4.0 LG, Depth: 3.1 mi) earthquake occurred 68.5 miles away from the county center
On 4/20/2002 at 10:50:47, a magnitude 5.2 (5.2 MB, 4.2 MS, 5.2 MW, 5.0 MW, Depth: 6.8 mi) earthquake occurred 297.2 miles away from the county center
On 8/26/2003 at 18:24:18, a magnitude 3.8 (3.8 LG, 3.5 ML, Depth: 1.9 mi, Class: Light, Intensity: II - III) earthquake occurred 32.1 miles away from Mercer County center
On 9/25/1998 at 19:52:52, a magnitude 5.2 (4.8 MB, 4.3 MS, 5.2 LG, 4.5 MW, Depth: 3.1 mi) earthquake occurred 309.3 miles away from the county center
Magnitude types: regional Lg-wave magnitude (LG), body-wave magnitude (MB), local magnitude (ML), surface-wave magnitude (MS), moment magnitude (MW)

Most recent natural disasters:

  • New Jersey Severe Winter Storm and Snowstorm, Incident Period: January 22, 2016 to January 24, 2016, Major Disaster (Presidential) Declared DR-4264: March 14, 2016, FEMA Id: 4264, Natural disaster type: Snowstorm, Winter Storm
  • New Jersey Hurricane Sandy, Incident Period: October 26, 2012 to November 08, 2012, Emergency Declared EM-3354: October 28, 2012, FEMA Id: 3354, Natural disaster type: Hurricane
  • New Jersey Hurricane Sandy, Incident Period: October 26, 2012 to November 08, 2012, Major Disaster (Presidential) Declared DR-4086: October 30, 2012, FEMA Id: 4086, Natural disaster type: Hurricane
  • New Jersey Remnants of Tropical Storm Lee, Incident Period: September 28, 2011 to October 06, 2011, Major Disaster (Presidential) Declared DR-4039: October 14, 2011, FEMA Id: 4039, Natural disaster type: Tropical Storm
  • New Jersey Hurricane Irene, Incident Period: August 27, 2011 to September 05, 2011, Major Disaster (Presidential) Declared DR-4021: August 31, 2011, FEMA Id: 4021, Natural disaster type: Hurricane
  • New Jersey Hurricane Irene, Incident Period: August 26, 2011 to September 05, 2011, Emergency Declared EM-3332: August 27, 2011, FEMA Id: 3332, Natural disaster type: Hurricane
  • New Jersey Severe Winter Storm and Snowstorm, Incident Period: December 26, 2010 to December 27, 2010, Major Disaster (Presidential) Declared DR-1954: February 04, 2011, FEMA Id: 1954, Natural disaster type: Snowstorm, Winter Storm
  • New Jersey Severe Storms and Flooding, Incident Period: March 12, 2010 to April 15, 2010, Major Disaster (Presidential) Declared DR-1897: April 02, 2010, FEMA Id: 1897, Natural disaster type: Storm, Flood
  • New Jersey Severe Storms and Inland and Coastal Flooding, Incident Period: April 14, 2007 to April 20, 2007, Major Disaster (Presidential) Declared DR-1694: April 26, 2007, FEMA Id: 1694, Natural disaster type: Storm, Flood
  • New Jersey Severe Storms and Flooding, Incident Period: June 23, 2006 to July 10, 2006, Major Disaster (Presidential) Declared DR-1653: July 07, 2006, FEMA Id: 1653, Natural disaster type: Storm, Flood
  • 14 other natural disasters have been reported since 1953.

The number of natural disasters in Mercer County (24) is a lot greater than the US average (13).
Major Disasters (Presidential) Declared: 15
Emergencies Declared: 9

Causes of natural disasters: Hurricanes: 7, Floods: 5, Storms: 4, Snowstorms: 3, Blizzards: 2, Heavy Rains: 2, Water Shortages: 2, Winter Storms: 2, Tornado: 1, Tropical Depression: 1, Tropical Storm: 1, Wind: 1, Other: 2 (Note: Some incidents may be assigned to more than one category).
Class of Workers in 2016
Most common industries in 2016 (%)
Males Females
Most common industries for males in 2016


  • Educational services (17%)
  • Health care and social assistance (16%)
  • Retail trade (8%)
  • Professional, scientific, and technical services (7%)
  • Finance and insurance (6%)
  • Public administration (6%)
  • Accommodation and food services (5%)

Most common industries for females in 2016


  • Educational services (19%)
  • Health care and social assistance (19%)
  • Retail trade (9%)
  • Professional, scientific, and technical services (8%)
  • Finance and insurance (7%)
  • Public administration (7%)
  • Accommodation and food services (6%)

Most common occupations in 2016 (%)
Males Females
Most common occupations for males in 2016


  • Management occupations (13%)
  • Sales and related occupations (8%)
  • Construction and extraction occupations (8%)
  • Computer and mathematical occupations (8%)
  • Building and grounds cleaning and maintenance occupations (7%)
  • Business and financial operations occupations (6%)
  • Office and administrative support occupations (6%)

Most common occupations for females in 2016


  • Office and administrative support occupations (19%)
  • Management occupations (11%)
  • Education, training, and library occupations (11%)
  • Sales and related occupations (10%)
  • Business and financial operations occupations (7%)
  • Health diagnosing and treating practitioners and other technical occupations (5%)
  • Personal care and service occupations (5%)

Most common places of birth for the foreign-born residents


  • India (15%)
  • Guatemala (15%)
  • China, excluding Hong Kong and Taiwan (8%)
  • Haiti (5%)
  • Mexico (4%)
  • Dominican Republic (4%)
  • Ecuador (4%)

Most common first ancestries reported in Mercer County


  • Italian (9%)
  • Irish (4%)
  • Polish (4%)
  • German (4%)
  • American (2%)
  • Haitian (2%)
  • English (2%)

Mercer County mode of transportation to work chart

Means of transportation to work:

  • Drove a car alone: 181,900 (78.9%)
  • Carpooled: 25,298 (11.0%)
  • Bus or trolley bus: 3,600 (1.6%)
  • Subway or elevated: 65 (0.0%)
  • Railroad: 2,052 (0.9%)
  • Taxicab, motorcycle, or other means: 1,938 (0.8%)
  • Bicycle: 594 (0.3%)
  • Walked: 6,234 (2.7%)
  • Worked at home: 8,861 (3.8%)
Owners and renters by unit type
Breakdown of mean house values by ages of householders

People in group quarters in Mercer County, New Jersey in 2000:

  • 12,207 people in college dormitories (includes college quarters off campus)
  • 3,263 people in state prisons
  • 2,243 people in nursing homes
  • 878 people in local jails and other confinement facilities (including police lockups)
  • 759 people in other noninstitutional group quarters
  • 550 people in mental (psychiatric) hospitals or wards
  • 308 people in other nonhousehold living situations
  • 175 people in homes for the mentally retarded
  • 166 people in religious group quarters
  • 136 people in homes or halfway houses for drug/alcohol abuse
  • 124 people in other group homes
  • 77 people in unknown juvenile institutions
  • 65 people in short-term care, detention or diagnostic centers for delinquent children
  • 60 people in homes for the mentally ill
  • 41 people in halfway houses
  • 18 people in training schools for juvenile delinquents
  • 13 people in wards in general hospitals for patients who have no usual home elsewhere
  • 5 people in homes for the physically handicapped
  • 3 people in agriculture workers' dormitories on farms

People in group quarters in Mercer County, New Jersey in 2010:

  • 11,254 people in college/university student housing
  • 2,699 people in nursing facilities/skilled-nursing facilities
  • 2,660 people in state prisons
  • 619 people in correctional residential facilities
  • 497 people in emergency and transitional shelters (with sleeping facilities) for people experiencing homelessness
  • 347 people in other noninstitutional facilities
  • 316 people in group homes intended for adults
  • 165 people in residential treatment centers for adults
  • 161 people in workers' group living quarters and job corps centers
  • 36 people in correctional facilities intended for juveniles
  • 31 people in group homes for juveniles (non-correctional)
  • 20 people in residential treatment centers for juveniles (non-correctional)
Average gross adjusted income of non-migrant taxpayers in this county in 2010 was $84,314.

4.88% of this county's 2011 resident taxpayers lived in other counties in 2010 ($63,721 average adjusted gross income)

Here:

4.88%
New Jersey average:

5.08%


0.09% of residents moved from foreign countries ($948 average AGI)
Mercer County:

0.09%
New Jersey average:

0.06%

2.36% relocated from other counties in New Jersey ($31,746 average AGI)
2.42% relocated from other states ($31,027 average AGI)
Mercer County:

2.42%
New Jersey average:

2.19%

Residents relocating <b>from</b> other counties or countries

Top counties from which taxpayers relocated into this county between 2010 and 2011:
from Middlesex County, NJ  0.77% ($73,725 average AGI)
from Burlington County, NJ  0.45% ($49,580)
from Bucks County, PA  0.30% ($47,857)
from Somerset County, NJ  0.19% ($84,746)
from Monmouth County, NJ  0.18% ($63,442)
from Ocean County, NJ  0.14% ($52,021)
from New York County, NY  0.13% ($125,619)


5.85% of this county's 2010 resident taxpayers moved to other counties in 2011 ($69,270 average adjusted gross income)

Here:

5.85%
New Jersey average:

5.65%


0.17% of residents moved to foreign countries ($2,167 average AGI)
Mercer County:

0.17%
New Jersey average:

0.09%

2.37% relocated to other counties in New Jersey ($26,417 average AGI)
3.31% relocated to other states ($40,685 average AGI)
Mercer County:

3.31%
New Jersey average:

2.75%

Residents relocating <b>to</b> other counties or countries

Top counties to which taxpayers relocated from this county between 2010 and 2011:
to Middlesex County, NJ  0.61% ($59,888 average AGI)
to Burlington County, NJ  0.58% ($57,591)
to Bucks County, PA  0.47% ($72,199)
to New York County, NY  0.21% ($85,778)
to Monmouth County, NJ  0.19% ($76,086)
to Philadelphia County, PA  0.19% ($42,500)
to Somerset County, NJ  0.18% ($106,486)

Births per 1000 population from 1990 to 1999: 13.9
Births per 1000 population from 2000 to 2006: 12.9
Births per 1000 population from 2007 to 2014: 12.1

Births per 1000 population in Mercer County

Deaths per 1000 population from 1990 to 1999: 8.8
Deaths per 1000 population from 2000 to 2006: 8.0
Deaths per 1000 population from 2007 to 2014: 7.7

Deaths per 1000 population in Mercer County

Infant deaths per 1000 live births from 1990 to 1999: 8.8
Infant deaths per 1000 live births from 2000 to 2006: 7.2
Infant deaths per 1000 live births from 2007 to 2013: 7.8

Infant deaths per 1000 population in Mercer County
Population without health insurance coverage in 2013: 14.6%
Persons under 19 years old without health insurance coverage in 2013: 5.8%
Percentage of population without health insurance coverage in Mercer County
All 18-64 40-64 50-64 Under 19
Population without health insurance coverage in Mercer County
18-64 population without health insurance coverage in Mercer County
40-64 population without health insurance coverage in Mercer County
50-64 population without health insurance coverage in Mercer County
Population under 19 years without health insurance coverage in Mercer County

Persons enrolled in hospital insurance and/or supplemental medical insurance (Medicare) in July 1, 2007: 53,116 (43,678 aged, 9,438 disabled)
Children under 18 without health insurance coverage in 2007: 9,942 (11%)
Persons enrolled in Medicare
Aged persons enrolled in Medicare
Disabled persons enrolled in Medicare

Most common underlying causes of death in Mercer County, New Jersey in 1999 - 2014:

  • Atherosclerotic heart disease (3,800)
  • Acute myocardial infarction, unspecified (2,760)
  • Bronchus or lung, unspecified - Malignant neoplasms (2,575)
  • Atherosclerotic cardiovascular disease, so described (1,567)
  • Chronic obstructive pulmonary disease, unspecified (1,451)
  • Unspecified dementia (1,276)
  • Septicaemia, unspecified (1,196)
  • Stroke, not specified as haemorrhage or infarction (1,135)
  • Pneumonia, unspecified (927)
  • Unspecified diabetes mellitus, without complications (913)

Population without health insurance coverage in 2000: 12%
Children under 18 without health insurance coverage in 2000: 8%

Short term general hospitals per 100,000 population in 2004: 1.37
Short term general hospital admissions per 100,000 population in 2004: 15,401
Short term general hospital beds per 100,000 population in 2004: 327
Emergency room visits per 100,000 population in 2004: 52,025

General practice office based MDs per 100,000 population in 2005: 1,166
Medical specialist MDs per 100,000 population in 2005: 716
Dentists per 100,000 population in 1998: 19

Total births per 100,000 population, July 2005 - July 2006 : 60
Total deaths per 100,000 population, July 2005 - July 2006: 94

Limited-service eating places per 100,000 population in 2005 : 18
Beer, wine & liquor stores per 100,000 population in 2005: 1

EPA green book nonattainment status in 2004-2006: 1

Homicides per 1,000,000 population from 2000 to 2006: 69.4. This is more than state average.

Mechanisms of homicide
Deaths per 1,000,000 population:
  • Firearm - 39.5
  • Cut/Pierce - 9.2
  • Transportation-Related, Overall - 9.2
  • Terrorism - 9.2
  • Other - 2.4

Suicides per 1,000,000 population from 2000 to 2006: 57.9. This is less than state average.

Mechanisms of suicide
Deaths per 1,000,000 population:
  • Suffocation - 23.5
  • Firearm - 16.0
  • Poisoning - 12.4
  • Other - 6.0

Household type by relationship:

Households: 371,023
  • In family households: 300,200 (46,405 male householders, 39,448 female householders)
    61,822 spouses, 115,203 children (110,196 natural, 1,447 adopted, 3,560 stepchildren), 8,479 grandchildren, 3,633 brothers or sisters, 6,958 parents, 9,626 other relatives, 8,626 non-relatives
  • In nonfamily households: 53,947 (18,099 male householders (14,225 living alone)), 24,380 female householders (22,169 living alone)), 11,468 nonrelatives
  • In group quarters: 16,876

Size of family households: 35,750 2-persons, 19,834 3-persons, 18,081 4-persons, 8,373 5-persons, 2,321 6-persons, 1,494 7-or-more-persons.

Size of nonfamily households: 36,394 1-person, 4,498 2-persons, 913 3-persons, 490 4-persons, 82 5-persons, 102 6-persons.

46,481 married couples with children.
22,949 single-parent households (2,684 men, 20,265 women).

70.1% of residents of Mercer speak English at home.
14.3% of residents speak Spanish at home (47% speak English very well, 17% speak English well, 29% speak English not well, 7% don't speak English at all).
8.6% of residents speak other Indo-European language at home (69% speak English very well, 19% speak English well, 9% speak English not well, 2% don't speak English at all).
5.7% of residents speak Asian or Pacific Island language at home (76% speak English very well, 14% speak English well, 8% speak English not well, 1% don't speak English at all).
1.2% of residents speak other language at home (81% speak English very well, 15% speak English well, 3% speak English not well).

In fiscal year 2004:

Federal Government expenditure: $4,071,875,000 ($11,148 per capita)
Department of Defense expenditure: $218,209,000
Federal direct payments to individuals for retirement and disability: $964,944,000
Federal other direct payments to individuals: $530,406,000
Federal direct payments not to individuals: $20,131,000
Federal grants: $2,045,978,000
Federal procurement contracts: $323,074,000 ($123,476,000 Department of Defense)
Federal salaries and wages: $187,343,000 ($26,143,000 Department of Defense)
Federal Government direct loans: $6,456,000
Federal guaranteed/insured loans: $209,469,000
Federal Government insurance: $209,248,000

Population change from April 1, 2000 to July 1, 2005:

Births: 24,081
Here:

66 per 1000 residents
State:

69 per 1000 residents

Deaths: 15,069
Here:

41 per 1000 residents
State:

44 per 1000 residents

Net international migration: +12,030
Here:

+33 per 1000 residents
State:

+33 per 1000 residents

Net internal migration: -5,065
Here -14 per 1000 residents
State -22 per 1000 residents
Population growth in Mercer County

Total withdrawal of fresh water for public supply: 40.88 millions of gallons per day (24% from ground, 76% from surface)

Median number of rooms in houses and condos:
Here:

7.0
State:

6.8

Median number of rooms in apartments:
Here:

4.4
State:

4.1

Year house built in Mercer County, New Jersey Note: State values scaled to Mercer County population
  • 8332014 or later
  • 2,2482010 to 2013
  • 13,9082000 to 2009
  • 12,3641990 to 1999
  • 14,8681980 to 1989
  • 16,3721970 to 1979
  • 17,6131960 to 1969
  • 22,3281950 to 1959
  • 8,9481940 to 1949
  • 35,2521939 or earlier
Rooms in houses/apartments in Mercer County, New Jersey
Owner-occupied Renter-occupied
Rooms in owner-occupied houses in Mercer County, New Jersey Note: State values scaled to Mercer County population
  • 961 room
  • 3122 rooms
  • 1,0263 rooms
  • 5,9574 rooms
  • 9,5885 rooms
  • 16,4986 rooms
  • 14,1137 rooms
  • 15,0018 rooms
  • 18,2439+ rooms
Rooms in renter-occupied apartments in Mercer County, New Jersey Note: State values scaled to Mercer County population
  • 2,4471 room
  • 2,0742 rooms
  • 8,7003 rooms
  • 12,1584 rooms
  • 10,6235 rooms
  • 6,5836 rooms
  • 3,1527 rooms
  • 6438 rooms
  • 1,1189+ rooms
Bedrooms in houses/apartments in Mercer County, New Jersey
Owner-occupied Renter-occupied
Bedrooms in owner-occupied houses in Mercer County, New Jersey Note: State values scaled to Mercer County population
  • 122no bedroom
  • 2,1331 bedroom
  • 13,5642 bedrooms
  • 34,4333 bedrooms
  • 23,2904 bedrooms
  • 7,2925+ bedrooms
Bedrooms in renter-occupied apartments in Mercer County, New Jersey Note: State values scaled to Mercer County population
  • 2,592no bedroom
  • 14,4951 bedroom
  • 17,5792 bedrooms
  • 9,7913 bedrooms
  • 2,2094 bedrooms
  • 8325+ bedrooms
Cars and other vehicles available in Mercer County, New Jersey in houses/condos/apartments
Owner-occupied Renter-occupied
Cars and other vehicles available in Mercer County in owner-occupied houses/condos Note: State values scaled to Mercer County population
  • 2,344no vehicle
  • 23,0361 vehicle
  • 36,0392 vehicles
  • 13,5473 vehicles
  • 4,3294 vehicles
  • 1,5395+ vehicles
Cars and other vehicles available in Mercer County in renter-occupied apartments Note: State values scaled to Mercer County population
  • 12,556no vehicle
  • 20,4021 vehicle
  • 11,6932 vehicles
  • 2,1863 vehicles
  • 4584 vehicles
  • 2035+ vehicles

87.1% of Mercer County residents lived in the same house 1 years ago.
   Out of people who lived in different houses, 35% lived in this county.
   Out of people who lived in different counties, 63% lived in New Jersey.

Mercer County:

87.1%
State average:

89.6%

Place of birth for U.S.-born residents:

  • This state: 193,629
  • Other state: 86,875
  • Northeast: 47,930
  • Midwest: 7,999
  • South: 23,188
  • West: 7,758
Year Householders Moved Into Unit
Most commonly used house heating fuel in Mercer County
Houses and condos Apartments
Most commonly used house heating fuel in houses and condos
  • 81.7%Utility gas
  • 9.7%Fuel oil, kerosene, etc.
  • 6.7%Electricity
  • 1.1%Bottled, tank, or LP gas
  • 0.2%Wood
  • 0.2%Other fuel
  • 0.2%Solar energy
Most commonly used house heating fuel in apartments
  • 65.2%Utility gas
  • 25.1%Electricity
  • 4.7%Fuel oil, kerosene, etc.
  • 2.1%Bottled, tank, or LP gas
  • 1.4%No fuel used
  • 1.1%Other fuel
  • 0.3%Wood

Private vs. public school enrollment:


Students in private schools in grades 1 to 8 (elementary and middle school): 2,390
Here:

6.7%
New Jersey:

10.5%

Students in private schools in grades 9 to 12 (high school): 2,335
Here:

12.1%
New Jersey:

11.1%

Students in private undergraduate colleges: 8,878
Here:

36.2%
New Jersey:

25.9%

Educational Attainment
School Enrollment by Level of School
Age and Sex of Sensory-Disabled Noninstitutionalized Residents
Age and Sex of Physically-Disabled Noninstitutionalized Residents
Age and Sex of Mentally-Disabled Noninstitutionalized Residents
Age and Sex of Self-Care Disabled Noninstitutionalized Residents
Age and Sex of Go-Outside-Home Disabled Noninstitutionalized Residents
Age and Sex of Noninstitutionalized Residents with Employment Disability

Mercer County government finances - Expenditure in 2006:

  • Assistance and Subsidies - Public Welfare, Federal Categorical Assistance Programs: $19,540,000
    Public Welfare, Cash Assistance Programs - Other: $11,792,000
  • Construction - Elementary and Secondary Education: $5,864,000
    General Public Buildings: $1,170,000
    Central Staff Services: $85,000
  • Current Operations - General - Other: $69,152,000
    Elementary and Secondary Education: $56,656,000
    Other Higher Education: $51,402,000
    Public Welfare - Other: $48,024,000
    Correctional Institutions: $22,068,000
    Parks and Recreation: $12,089,000
    Judicial and Legal Services: $11,038,000
    Police Protection: $10,386,000
    Public Welfare Institutions: $9,799,000
    Libraries: $8,709,000
    Health - Other: $6,733,000
    Regular Highways: $6,305,000
    General Public Buildings: $5,875,000
    Financial Administration: $4,567,000
    Higher Education Auxiliary Enterprises: $4,046,000
    Corrections - Other: $3,341,000
    Central Staff Services: $3,088,000
    Air Transportation: $1,651,000
    Public Welfare, Vendor Payments for Other Purposes: $925,000
    Protective Inspection and Regulation, NEC: $801,000
    Local Fire Protection: $44,000
  • General - Interest on Debt: $4,117,000
  • Intergovernmental to Local NEC - Judicial and Legal Services: $150,000
  • Other Capital Outlay - Air Transportation: $3,600,000
    Police Protection: $1,126,000
    Elementary and Secondary Education: $1,054,000
    Regular Highways: $1,002,000
    Correctional Institutions: $405,000
    Health - Other: $287,000
    Judicial and Legal Services: $191,000
  • Total Salaries and Wages: $138,269,000

Mercer County government finances - Revenue in 2006:

  • Charges - Elementary and Secondary Education School Tuition and Transportation: $32,088,000
    Higher Education - Other: $26,923,000
    All Other: $16,194,000
    Elementary and Secondary Education - Other: $12,407,000
    Parks and Recreation: $5,878,000
    Higher Education Auxiliary Enterprises: $4,046,000
    Air Transportation: $2,014,000
    Elementary and Secondary Education School Lunch: $375,000
  • Local Intergovernmental - Education: $1,179,000
  • Miscellaneous - General Revenue, NEC: $6,375,000
    Fines and Forfeits: $2,360,000
    Interest Earnings: $1,812,000
    Rents: $83,000
  • State Intergovernmental - Public Welfare: $54,588,000
    All Other: $22,775,000
    Education: $4,609,000
    Health and Hospitals: $2,893,000
    General Local Government Support: $311,000
  • Tax - Property: $187,589,000
    Other License: $1,830,000

Mercer County government finances - Debt in 2006:

  • Long Term Debt - Outstanding Unspecified Public Purpose: $104,318,000
    Beginning Outstanding - Unspecified Public Purpose: $102,933,000
    Issue, Unspecified Public Purpose: $8,910,000
    Retired Unspecified Public Purpose: $7,525,000
  • Short Term Debt Outstanding - Beginning: $2,280,000
    End of Fiscal Year: $2,200,000

Mercer County government finances - Cash and Securities in 2006:

  • Bond Funds - Cash and Securities: $7,971,000
  • Other Funds - Cash and Securities: $52,337,000

Supplemental Security Income (SSI) in 2006:

  • Total number of recipients: 7,032
  • Number of aged recipients: 1,050
  • Number of blind and disabled recipients: 5,982
  • Number of recipients under 18: 1,395
  • Number of recipients between 18 and 64: 3,933
  • Number of recipients older than 64: 1,704
  • Number of recipients also receiving OASDI: 2,184
  • Amount of payments (thousands of dollars): 3,480
Mercer County Fatal accident statistics for 1975 - 1994
Count Vehicles DUI Fatalities Persons Pedestrians
Fatal accident count
Vehicles involved in fatal accidents
Fatal accidents involving drunken persons
Fatalities
Persons involved in fatal accidents
Pedestrians involved in fatal accidents
Mercer County Fatal accident statistics for 1995 - 2014
Count Vehicles DUI Fatalities Persons Pedestrians
Fatal accident count
Vehicles involved in fatal accidents
Fatal accidents involving drunken persons
Fatalities
Persons involved in fatal accidents
Pedestrians involved in fatal accidents
Home Mortgage Disclosure Act Aggregated Statistics For Year 2009
(Based on 72 full tracts)
A) FHA, FSA/RHS & VA
Home Purchase Loans
B) Conventional
Home Purchase Loans
C) Refinancings
D) Home Improvement Loans
E) Loans on Dwellings For 5+ Families
F) Non-occupant Loans on
< 5 Family Dwellings (A B C & D)
G) Loans On Manufactured
Home Dwelling (A B C & D)
NumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage ValueNumberAverage Value
LOANS ORIGINATED1,227$206,5291,610$281,1377,891$253,274355$92,0658$5,524,125281$172,7261$150,000
APPLICATIONS APPROVED, NOT ACCEPTED61$199,918207$331,522762$237,74978$52,2052$207,50031$194,2580$0
APPLICATIONS DENIED229$186,271286$266,3083,097$237,902398$54,1384$3,828,250250$146,9324$36,500
APPLICATIONS WITHDRAWN133$176,421209$276,3111,985$245,70982$105,0000$083$265,0361$7,500,000
FILES CLOSED FOR INCOMPLETENESS40$218,50067$322,537464$252,24824$125,1250$018$138,7220$0
Private Mortgage Insurance Companies Aggregated Statistics For Year 2009
(Based on 65 full tracts)
A) Conventional
Home Purchase Loans
B) Refinancings
C) Non-occupant Loans on
< 5 Family Dwellings (A & B)
NumberAverage ValueNumberAverage ValueNumberAverage Value
LOANS ORIGINATED220$267,173120$277,6580$0
APPLICATIONS APPROVED, NOT ACCEPTED107$232,74868$263,2654$86,750
APPLICATIONS DENIED29$252,89753$274,5281$148,000
APPLICATIONS WITHDRAWN21$316,09519$294,1581$97,000
FILES CLOSED FOR INCOMPLETENESS7$239,4295$200,0001$180,000
Conventional Home Purchase Loans
Conventional Home Purchase Loans - Value
Most common first names in Mercer County, NJ among deceased individuals
NameCountLived (average)
John3,94374.0 years
Mary3,76880.3 years
Joseph2,64674.6 years
William2,38473.9 years
Helen1,91580.1 years
Anna1,90182.0 years
James1,63771.8 years
Elizabeth1,52480.8 years
George1,49374.7 years
Charles1,47174.7 years
Most common last names in Mercer County, NJ among deceased individuals
Last nameCountLived (average)
Smith78774.8 years
Johnson59572.2 years
Williams55371.5 years
Brown47572.3 years
Jones41772.5 years
Miller33575.5 years
Wilson30473.6 years
Davis29571.7 years
Taylor24674.7 years
Moore23273.6 years
Businesses in Mercer County, NJ
NameCountNameCount
7-Eleven16Kmart1
ALDI1Kohl's2
AT&T9Kroger1
Ace Hardware3La-Z-Boy1
Advance Auto Parts4Lane Bryant1
Aeropostale1Lane Furniture2
Aerosoles1LensCrafters2
American Eagle Outfitters1Long John Silver's1
Ann Taylor3Lowe's2
Applebee's2Macy's1
Arby's1Marriott3
Audi1Marshalls1
AutoZone3MasterBrand Cabinets23
Avenue2McDonald's8
BMW1Men's Wearhouse2
Banana Republic2Motherhood Maternity3
Barnes & Noble2New Balance10
Baskin-Robbins6New York & Co2
Bath & Body Works2Nike2
Bed Bath & Beyond2Nissan2
Blockbuster1Office Depot1
Brookstone1Old Navy2
Burger King9Olive Garden1
CVS15On The Border1
Cache1Outback1
Casual Male XL1Outback Steakhouse1
Charlotte Russe1Pac Sun1
Chick-Fil-A2Panera Bread3
Chico's2Papa John's Pizza2
Clarion1Payless8
Clarks1Penske2
Cold Stone Creamery2PetSmart2
Coldwater Creek1Pier 1 Imports2
Comfort Inn1Pizza Hut2
Cracker Barrel1Popeyes2
Cricket Wireless6Pottery Barn1
Curves1Pottery Barn Kids1
DHL5Quality1
Dairy Queen3Quiznos5
Days Inn1RadioShack8
Deb1Raymour & Flanigan1
Decora Cabinetry4Red Lobster1
Domino's Pizza6Red Robin1
DressBarn4Red Roof Inn1
Dressbarn4Rite Aid16
Dunkin Donuts33Ruby Tuesday2
Express1Sam's Club1
Extended Stay America1Sears3
Famous Footwear3Soma Intimates1
Fashion Bug1Spencer Gifts1
FedEx72Sprint Nextel4
Finish Line1Staples5
Firestone Complete Auto Care1Starbucks8
Foot Locker3Stop & Shop1
Ford3Subaru2
Forever 211Subway22
GNC9T-Mobile4
GameStop5T.G.I. Driday's3
Gap3T.J.Maxx2
Goodwill10Taco Bell5
Gymboree3Talbots2
H&R Block9Target2
Haworth1The Limited1
Hilton4The Room Place3
Holiday Inn2Toyota1
Home Depot4Toys"R"Us3
Hot Topic1Trader Joe's1
Houlihan's1True Value1
Howard Johnson1U-Haul14
Hyatt2UPS109
Hyundai1Verizon Wireless6
IHOP1Victoria's Secret3
J.Crew1Volkswagen2
JCPenney1Walgreens2
JoS. A. Bank2Walmart3
Jones New York5Wendy's7
Journeys1Westin1
Justice2Whole Foods Market1
KFC4YMCA5

Mercer County on our top lists:

  • #14 on the list of "Top 101 counties with the largest increase in the number of infant deaths per 1000 residents 2000-2006 to 2007-2013 (pop. 50,000+)"
  • #22 on the list of "Top 101 counties with the lowest percentage of residents that keep firearms around their homes"
  • #34 on the list of "Top 101 counties with the highest average weight of females"
  • #39 on the list of "Top 101 counties with the highest number of infant deaths per 1000 residents 2007-2013 (pop. 50,000+)"
  • #40 on the list of "Top 101 counties with the largest number of people moving out compared to moving in (pop. 50,000+)"
  • #61 on the list of "Top 101 counties with the lowest percentage of residents that drank alcohol in the past 30 days"
  • #64 on the list of "Top 101 counties with highest percentage of residents voting for Obama (Democrat) in the 2012 Presidential Election (pop. 50,000+)"
  • #90 on the list of "Top 101 counties with the highest percentage of residents that visited a dentist within the past year"
  • #101 on the list of "Top 101 counties with the lowest Ozone (1-hour) air pollution readings in 2012 (ppm)"