Blackhawk, California

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Population in 2010: 9,354.
Males: 4,630  (49.5%)
Females: 4,724  (50.5%)
Median resident age:  50.0 years
California median age:  36.4 years

Zip codes: 94506.

Estimated median household income in 2016: $91,045
Blackhawk:

$91,045
CA:

$67,739

Estimated per capita income in 2016: $43,120

Blackhawk CDP income, earnings, and wages data

Estimated median house or condo value in 2016: $577,000
Blackhawk:

$577,000
CA:

$477,500

Mean prices in 2016: All housing units: over $1,000,000; Detached houses: over $1,000,000; Townhouses or other attached units: $820,571

Median gross rent in 2016: $3,219.

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  • Races in Blackhawk, CA (2010)

    Blackhawk races chart
    • 6,56270.2%White alone
    • 1,78619.1%Asian alone
    • 4645.0%Hispanic
    • 3353.6%Two or more races
    • 1671.8%Black alone
    • 220.2%Other race alone
    • 100.1%American Indian alone
    • 80.09%Native Hawaiian and Other
      Pacific Islander alone

Races in Blackhawk detailed stats: ancestries, foreign born residents, place of birth

Mar. 2016 cost of living index in Blackhawk: 140.7 (very high, U.S. average is 100)
Recent articles from our blog. Our writers, many of them Ph.D. graduates or candidates, create easy-to-read articles on a wide variety of topics.

Ancestries: European (10.8%), Iranian (7.9%), English (6.2%), Italian (4.6%), German (4.5%), Irish (4.3%).

Current Local Time: PST time zone

Elevation: 980 feet

Blackhawk,CA real estate house value index trend

For population 25 years and over in Blackhawk:

  • High school or higher: 99.0%
  • Bachelor's degree or higher: 73.7%
  • Graduate or professional degree: 28.8%
  • Mean travel time to work (commute): 32.7 minutes

For population 15 years and over in Blackhawk CDP:

  • Never married: 19.0%
  • Now married: 73.3%
  • Separated: 1.0%
  • Widowed: 2.3%
  • Divorced: 4.5%

2,269 residents are foreign born (3.2% Europe).

This place:

23.4%
California:

27.0%



According to our research of California and other state lists there was 1 registered sex offender living in Blackhawk, California as of March 19, 2019.
The ratio of number of residents in Blackhawk to the number of sex offenders is 9,700 to 1.
The number of registered sex offenders compared to the number of residents in this city is a lot smaller than the state average.


Median real estate property taxes paid for housing units with mortgages in 2016: $11,158 (0.9%)
Median real estate property taxes paid for housing units with no mortgage in 2016: $11,774 (0.9%)

Nearest city with pop. 50,000+: Walnut Creek, CA (9.9 miles , pop. 64,296).

Nearest city with pop. 200,000+: Central Contra Costa, CA (10.2 miles , pop. 459,252).

Nearest city with pop. 1,000,000+: Los Angeles, CA (325.2 miles , pop. 3,694,820).

Nearest cities: Blackhawk-Camino Tassajara, CA (0.9 miles ), Camino Tassajara, CA (1.5 miles ), Diablo, CA (1.7 miles ), Danville, CA (1.9 miles ), Tassajara, CA (2.1 miles ), San Ramon, CA (2.2 miles ), Norris Canyon, CA (2.6 miles ), Alamo, CA (2.7 miles ).

Latitude: 37.82 N, Longitude: 121.91 W

Area code commonly used in this area: 925

Blackhawk household income distribution Blackhawk home values distribution
Unemployment in September 2015:
Here:

4.4%
California:

5.5%

Unemployment by year (%)

Most common industries in 2016 (%)
Males Females
  • Professional, scientific, and technical services (19%)
  • Manufacturing (15%)
  • Finance and insurance (14%)
  • Retail trade (8%)
  • Real estate and rental and leasing (8%)
  • Health care and social assistance (7%)
  • Wholesale trade (6%)
  • Health care and social assistance (15%)
  • Educational services (12%)
  • Professional, scientific, and technical services (10%)
  • Retail trade (10%)
  • Real estate and rental and leasing (9%)
  • Finance and insurance (8%)
  • Wholesale trade (6%)
Most common occupations in 2016 (%)
Males Females
  • Management occupations (38%)
  • Sales and related occupations (19%)
  • Business and financial operations occupations (8%)
  • Computer and mathematical occupations (6%)
  • Office and administrative support occupations (4%)
  • Architecture and engineering occupations (4%)
  • Transportation occupations (3%)
  • Sales and related occupations (23%)
  • Management occupations (15%)
  • Office and administrative support occupations (12%)
  • Business and financial operations occupations (11%)
  • Education, training, and library occupations (8%)
  • Health diagnosing and treating practitioners and other technical occupations (7%)
  • Personal care and service occupations (5%)

Work and jobs in Blackhawk: detailed stats about occupations, industries, unemployment, workers, commute

Earthquake activity:

Blackhawk-area historical earthquake activity is near California state average. It is 761% greater than the overall U.S. average.

On 4/18/1906 at 13:12:21, a magnitude 7.9 (7.9 UK, Class: Major, Intensity: VIII - XII) earthquake occurred 60.9 miles away from the city center, causing $524,000,000 total damage
On 10/18/1989 at 00:04:15, a magnitude 7.1 (6.5 MB, 7.1 MS, 6.9 MW, 7.0 ML) earthquake occurred 49.7 miles away from Blackhawk center, causing 62 deaths (62 shaking deaths) and 3757 injuries, causing $1,305,032,704 total damage
On 11/4/1927 at 13:51:53, a magnitude 7.5 (7.5 UK) earthquake occurred 206.8 miles away from the city center
On 7/21/1952 at 11:52:14, a magnitude 7.7 (7.7 UK) earthquake occurred 253.4 miles away from the city center, causing $50,000,000 total damage
On 1/31/1922 at 13:17:28, a magnitude 7.6 (7.6 UK) earthquake occurred 278.9 miles away from Blackhawk center
On 4/25/1992 at 18:06:04, a magnitude 7.2 (6.3 MB, 7.1 MS, 7.2 MW, 7.1 MW, Depth: 9.4 mi) earthquake occurred 209.9 miles away from the city center, causing $75,000,000 total damage
Magnitude types: body-wave magnitude (MB), local magnitude (ML), surface-wave magnitude (MS), moment magnitude (MW)

Natural disasters:

The number of natural disasters in Contra Costa County (14) is near the US average (13).
Major Disasters (Presidential) Declared: 11
Emergencies Declared: 3

Causes of natural disasters: Floods: 10, Storms: 7, Landslides: 4, Winter Storms: 4, Mudslides: 2, Drought: 1, Earthquake: 1, Hurricane: 1, Tornado: 1, Wind: 1 (Note: Some incidents may be assigned to more than one category).

Hospitals and medical centers near Blackhawk:

  • HOME FOR JEWISH PARENTS (Nursing Home, about 2 miles away; DANVILLE, CA)
  • SAN RAMON REHAB HOSPITAL (Nursing Home, about 5 miles away; SAN RAMON, CA)
  • SAN RAMON REGIONAL MEDICAL CTR Acute Care Hospitals (about 5 miles away; SAN RAMON, CA)
  • ALLIANCE HOME HEALTH CARE (Home Health Center, about 5 miles away; SAN RAMON, CA)
  • SENIOR HAVEN HOME CARE (Home Health Center, about 5 miles away; SAN RAMON, CA)
  • ACCENTCARE HOME HEALTH OF CALIFORNIA, INC (Home Health Center, about 5 miles away; SAN RAMON, CA)
  • DANVILLE REHABILITATION (Nursing Home, about 5 miles away; DANVILLE, CA)

Amtrak stations near Blackhawk:

  • 9 miles: EAST DUBLIN-PLEASANTON (PLEASANTON, OWENS DR. AT BART WAY) - Bus Station
  • 13 miles: LIVERMORE (720 LAS FLORES DR.) - Bus Station . Services: fully wheelchair accessible, enclosed waiting area, public restrooms, public payphones, full-service food facilities, free short-term parking, free long-term parking, call for taxi service, intercity bus service, public transit connection.
  • 15 miles: ANTIOCH-PITTSBURG (ANTIOCH, I ST. & SANTA FE TRACKS) . Services: public payphones, full-service food facilities, free short-term parking, free long-term parking, call for taxi service, intercity bus service, public transit connection.

Colleges/universities with over 2000 students nearest to Blackhawk:

  • Las Positas College (about 10 miles; Livermore, CA; Full-time enrollment: 5,112)
  • Saint Mary's College of California (about 12 miles; Moraga, CA; FT enrollment: 4,200)
  • Los Medanos College (about 14 miles; Pittsburg, CA; FT enrollment: 5,289)
  • Diablo Valley College (about 14 miles; Pleasant Hill, CA; FT enrollment: 13,015)
  • California State University-East Bay (about 15 miles; Hayward, CA; FT enrollment: 12,956)
  • Merritt College (about 15 miles; Oakland, CA; FT enrollment: 2,842)
  • Chabot College (about 17 miles; Hayward, CA; FT enrollment: 7,610)

Click to draw/clear place borders

Notable locations in Blackhawk: Blackhawk Country Club (A), Black Hawk Ranch (B), Behring Museum (C), San Ramon Valley Fire Protection District Station 35 (D). Display/hide their locations on the map

Contra Costa County has a predicted average indoor radon screening level between 2 and 4 pCi/L (pico curies per liter) - Moderate Potential

Air pollution and air quality trends
(lower is better)

Air Quality Index (AQI) level in 2013 was 113. This is significantly worse than average.

City:

113
U.S.:

75

Carbon Monoxide (CO) [ppm] level in 2013 was 0.334. This is about average. Closest monitor was 8.0 miles away from the city center.

City:

0.334
U.S.:

0.293

Nitrogen Dioxide (NO2) [ppb] level in 2013 was 9.81. This is significantly worse than average. Closest monitor was 5.5 miles away from the city center.

City:

9.81
U.S.:

6.40

Sulfur Dioxide (SO2) [ppb] level in 2013 was 0.476. This is significantly better than average. Closest monitor was 8.0 miles away from the city center.

City:

0.476
U.S.:

1.912

Ozone [ppb] level in 2013 was 21.9. This is significantly better than average. Closest monitor was 5.5 miles away from the city center.

City:

21.9
U.S.:

32.0

Particulate Matter (PM10) [µg/m3] level in 2013 was 15.9. This is better than average. Closest monitor was 10.3 miles away from the city center.

City:

15.9
U.S.:

20.0

Particulate Matter (PM2.5) [µg/m3] level in 2013 was 8.94. This is about average. Closest monitor was 10.3 miles away from the city center.

City:

8.94
U.S.:

9.35

Lead (Pb) [µg/m3] level in 2010 was 0.0108. This is better than average. Closest monitor was 8.0 miles away from the city center.

City:

0.0108
U.S.:

0.0138
Percentage of residents living in poverty in 2016: 4.7%
(2.5% for White Non-Hispanic residents)
Average household size:
This place:  2.8 people
California:  2.9 people

Percentage of family households:
This place:  86.8%
Whole state:  68.7%

Percentage of households with unmarried partners:
This place:  2.9%
Whole state:  7.2%

Likely homosexual households (counted as self-reported same-sex unmarried-partner households)
  • Lesbian couples: 0.4% of all households
  • Gay men: 0.2% of all households

Educational Attainment (%) in 2016

School Enrollment by Level of School (%) in 2016

Education Gini index (Inequality in education)
Here:

7.3
California average:

15.3

Presidential Elections Results

1996 2000 2004 2008 2012 2016

1996 Presidential Elections Results

2000 Presidential Elections Results

2004 Presidential Elections Results

2008 Presidential Elections Results

2012 Presidential Elections Results

2016 Presidential Elections Results

Graphs represent county-level data. Detailed 2008 Election Results

Religion statistics for Blackhawk CDP (based on Contra Costa County data)

ReligionAdherentsCongregations
Catholic228,40034
Evangelical Protestant81,120352
Other48,553123
Mainline Protestant32,693101
Black Protestant10,39534
Orthodox2,4358
None645,429-
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. Graphs represent county-level data

Food Environment Statistics:

Number of grocery stores: 181
Contra Costa County:

1.78 / 10,000 pop.
California:

2.14 / 10,000 pop.
Number of supercenters and club stores: 5
This county:

0.05 / 10,000 pop.
State:

0.04 / 10,000 pop.
Number of convenience stores (no gas): 52
Contra Costa County:

0.51 / 10,000 pop.
California:

0.62 / 10,000 pop.
Number of convenience stores (with gas): 178
Contra Costa County:

1.75 / 10,000 pop.
State:

1.49 / 10,000 pop.
Number of full-service restaurants: 683
Here:

6.73 / 10,000 pop.
State:

7.42 / 10,000 pop.
Adult diabetes rate:
This county:

7.1%
California:

7.3%
Adult obesity rate:
Contra Costa County:

22.2%
California:

21.3%
Low-income preschool obesity rate:
This county:

16.8%
State:

17.9%

6.01% of this county's 2011 resident taxpayers lived in other counties in 2010 ($67,111 average adjusted gross income)

Here:

6.01%
California average:

5.03%

0.04% of residents moved from foreign countries ($479 average AGI)
Contra Costa County:

0.04%
California average:

0.07%

Top counties from which taxpayers relocated into this county between 2010 and 2011:
from Alameda County, CA  1.77% ($69,267 average AGI)
from San Francisco County, CA  0.52% ($75,223)
from Solano County, CA  0.38% ($50,630)


5.70% of this county's 2010 resident taxpayers moved to other counties in 2011 ($63,200 average adjusted gross income)

Here:

5.70%
California average:

5.12%

0.07% of residents moved to foreign countries ($994 average AGI)
Contra Costa County:

0.07%
California average:

0.10%

Top counties to which taxpayers relocated from this county between 2010 and 2011:
to Alameda County, CA  1.41% ($57,956 average AGI)
to San Francisco County, CA  0.44% ($56,560)
to Solano County, CA  0.39% ($47,181)

Strongest AM radio stations in Blackhawk:

  • KTCT (1050 AM; 50 kW; SAN MATEO, CA; Owner: SUSQUEHANNA RADIO CORP.)
  • KFAX (1100 AM; 50 kW; SAN FRANCISCO, CA; Owner: GOLDEN GATE BROADCASTING CO, INC.)
  • KTRB (860 AM; 50 kW; MODESTO, CA; Owner: PAPPAS RADIO OF CALIFORNIA, A CALIFORNIA LIMITED PARTNERSHIP)
  • KGO (810 AM; 50 kW; SAN FRANCISCO, CA; Owner: KGO-AM RADIO, INC.)
  • KNBR (680 AM; 50 kW; SAN FRANCISCO, CA; Owner: KNBR LICO, INC.)
  • KIQI (1010 AM; 35 kW; SAN FRANCISCO, CA; Owner: RADIO UNICA OF SAN FRANCISCO LICENSE CORP.)
  • KYCY (1550 AM; 50 kW; SAN FRANCISCO, CA; Owner: INFINITY BROADCASTING OPERATIONS, INC.)
  • KCBS (740 AM; 50 kW; SAN FRANCISCO, CA; Owner: INFINITY BROADCASTING OPERATIONS, INC.)
  • KNEW (910 AM; 20 kW; OAKLAND, CA; Owner: AMFM RADIO LICENSES, L.L.C.)
  • KLOK (1170 AM; 50 kW; SAN JOSE, CA; Owner: ENTRAVISION HOLDINGS, LLC)
  • KATD (990 AM; 10 kW; PITTSBURG, CA; Owner: RADIO UNICA OF SACRAMENTO LICENSE CORP.)
  • KCBC (770 AM; 50 kW; RIVERBANK, CA; Owner: KIERTRON, INC.)
  • KFRC (610 AM; 5 kW; SAN FRANCISCO, CA; Owner: INFINITY BROADCASTING CORPORATION OF LOS ANGELES)

Strongest FM radio stations in Blackhawk:

  • KKSF-FM1 (103.7 FM; PLEASANTON, ETC., CA; Owner: AMFM RADIO LICENSES, L.L.C.)
  • KFRC-FM3 (99.7 FM; WALNUT CREEK, CA; Owner: INFINITY KFRC-FM, INC.)
  • KZBR-FM1 (95.7 FM; WALNUT CREEK, CA; Owner: BONNEVILLE HOLDING COMPANY)
  • KBLX-FM2 (102.9 FM; PLEASANTON, CA; Owner: ICBC BROADCAST HOLDINGS -CA, INC.)
  • KSOL-FM3 (98.9 FM; PLEASANTON, CA; Owner: TMS LICENSE CALIFORNIA, INC)
  • KISQ-FM3 (98.1 FM; CONCORD, CA; Owner: AMFM RADIO LICENSES, L.L.C.)
  • KMEL-FM1 (106.1 FM; CONCORD, CA; Owner: AMFM RADIO LICENSES, L.L.C.)
  • KZBR-FM2 (95.7 FM; LIVERMORE, ETC., CA; Owner: BONNEVILLE HOLDING COMPANY)
  • KFJO (92.1 FM; WALNUT CREEK, CA; Owner: CHASE RADIO PROPERTIES, L.L.C.)
  • KDFC-FM1 (102.1 FM; LAFAYETTE, CA; Owner: BONNEVILLE HOLDING COMPANY)
  • KOIT-FM2 (96.5 FM; MARTINEZ, ETC., CA; Owner: BONNEVILLE HOLDING CO. C/O KOIT(FM))
  • KIOI-FM1 (101.3 FM; WALNUT CREEK, CA; Owner: AMFM RADIO LICENSES, L.L.C.)
  • KLLC (97.3 FM; SAN FRANCISCO, CA; Owner: INFINITY BROADCASTING OPERATIONS, INC.)
  • K238AC (95.5 FM; SALIDA, CA; Owner: FAMILY STATIONS, INC.)
  • KSFB-FM (100.7 FM; SAN RAFAEL, CA; Owner: GOLDEN GATE BROADCASTING COMPANY, INC.)
  • KBAA (94.5 FM; GILROY, CA; Owner: INFINITY RADIO OPERATIONS INC.)
  • KOIT-FM (96.5 FM; SAN FRANCISCO, CA; Owner: BONNEVILLE HOLDING COMPANY)
  • KKSF (103.7 FM; SAN FRANCISCO, CA; Owner: AMFM RADIO LICENSES, L.L.C.)
  • KFOG (104.5 FM; SAN FRANCISCO, CA; Owner: KFFG LICO, INC)
  • KALX (90.7 FM; BERKELEY, CA; Owner: UNIVERSITY OF CALIFORNIA)

TV broadcast stations around Blackhawk:

  • KFTL (Channel 64; STOCKTON, CA; Owner: FAMILY STATIONS, INC.)
  • KQED (Channel 9; SAN FRANCISCO, CA; Owner: KQED, INC.)
  • KOVR (Channel 13; STOCKTON, CA; Owner: SCI - SACRAMENTO LICENSEE, LLC)
  • KXTV (Channel 10; SACRAMENTO, CA; Owner: KXTV, INC.)
  • KCRA-TV (Channel 3; SACRAMENTO, CA; Owner: KCRA HEARST-ARGYLE TELEVISION, INC.)
  • KSPX (Channel 29; SACRAMENTO, CA; Owner: PAXSON SACRAMENTO LICENSE, INC.)
  • KUVS (Channel 19; MODESTO, CA; Owner: KUVS LICENSE PARTNERSHIP, G.P.)
  • KTXL (Channel 40; SACRAMENTO, CA; Owner: CHANNEL 40, INC.)
  • KQCA (Channel 58; STOCKTON, CA; Owner: KCRA HEARST-ARGYLE TELEVISION, INC.)
  • KTNC-TV (Channel 42; CONCORD, CA; Owner: KTNC LICENSE, LLC)
  • KVIE (Channel 6; SACRAMENTO, CA; Owner: KVIE, INC.)
  • KMAX-TV (Channel 31; SACRAMENTO, CA; Owner: UPN STATIONS GROUP INC.)
  • KGO-TV (Channel 7; SAN FRANCISCO, CA; Owner: KGO TELEVISION, INC.)
  • KPIX-TV (Channel 5; SAN FRANCISCO, CA; Owner: CBS BROADCASTING INC.)
  • KTVU (Channel 2; OAKLAND, CA; Owner: KTVU PARTNERSHIP)
  • KBIT-CA (Channel 28; SAN FRANCISCO, ETC., CA; Owner: POLAR BROADCASTING, INC.)
  • KRON-TV (Channel 4; SAN FRANCISCO, CA; Owner: YOUNG BROADCASTING OF SAN FRANCISCO, INC.)
  • KMTP-TV (Channel 32; SAN FRANCISCO, CA; Owner: MINORITY TELEVISION PROJECT)
  • KBHK-TV (Channel 44; SAN FRANCISCO, CA; Owner: VIACOM TELEVISION STATIONS GROUP OF SAN FRANCISCO INC.)
  • KBWB (Channel 20; SAN FRANCISCO, CA; Owner: KBWB LICENSE, INC.)
  • KICU-TV (Channel 36; SAN JOSE, CA; Owner: KTVU PARTNERSHIP)
  • KFSF (Channel 66; VALLEJO, CA; Owner: TELEFUTURA SAN FRANCISCO LLC)
  • KCNS (Channel 38; SAN FRANCISCO, CA; Owner: WRAY, INC.)
  • KTEH (Channel 54; SAN JOSE, CA; Owner: KTEH FOUNDATION)
  • KCSM-TV (Channel 60; SAN MATEO, CA; Owner: SAN MATEO COUNTY COMMUNITY COLLEGE DISTRICT)

Blackhawk compared to California state average:

  • Median house value significantly above state average.
  • Unemployed percentage significantly below state average.
  • Black race population percentage significantly below state average.
  • Hispanic race population percentage significantly below state average.
  • Median age significantly above state average.
  • Renting percentage significantly below state average.
  • Length of stay since moving in significantly below state average.
  • Number of rooms per house significantly above state average.
  • House age below state average.
  • Percentage of population with a bachelor's degree or higher significantly above state average.

Blackhawk on our top lists:

  • #1 on the list of "Top 101 cities with largest percentage of males in occupations: Management occupations (population 5,000+)"
  • #10 on the list of "Top 101 cities with largest percentage of females in industries: Real estate and rental and leasing (population 5,000+)"
  • #17 on the list of "Top 100 cities with highest median house value"
  • #25 on the list of "Top 101 cities with the lowest percentage of single-parent households, population 5,000+"
  • #38 on the list of "Top 101 cities with largest percentage of females in occupations: Business and financial operations occupations (population 5,000+)"
  • #49 on the list of "Top 101 cities with largest percentage of females in occupations: Management occupations (population 5,000+)"
  • #59 on the list of "Top 101 cities with the most residents born in Hong Kong (population 500+)"
  • #64 on the list of "Top 101 cities with the most residents born in Iraq (population 500+)"
  • #76 on the list of "Top 100 cities with highest ratio of median house value to median household income"
  • #84 on the list of "Top 101 cities with the most residents born in Iran (population 500+)"
  • #88 on the list of "Top 101 cities with largest percentage of females in occupations: Sales and related occupations (population 5,000+)"
  • #92 on the list of "Top 100 cities with biggest houses (pop. 5,000+)"
  • #12 (94506) on the list of "Top 101 zip codes with the largest percentage of taxpayers using charity contributions deductions in 2012 (pop 5,000+)"
  • #69 (94506) on the list of "Top 101 zip codes with the highest 2012 average reported profit/loss from business (pop 5,000+)"
  • #84 (94506) on the list of "Top 101 zip codes with the highest average reported salary/wage in 2012 (pop 5,000+)"
  • #89 (94506) on the list of "Top 101 zip codes with the largest percentage of taxpayers reporting net capital gain/loss in 2012 (pop 5,000+)"
  • #10 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+)"
  • #15 on the list of "Top 101 counties with the lowest Sulfur Oxides Annual air pollution readings in 2012 (µg/m3)"
  • #17 on the list of "Top 101 counties with the highest Nitrogen Dioxide air pollution readings in 2012 (ppm)"
  • #31 on the list of "Top 101 counties with the highest percentage of residents that drank alcohol in the past 30 days"
  • #34 on the list of "Top 101 counties with the highest surface withdrawal of fresh water for public supply (pop. 50,000+)"
Cost of Living Calculator
Top Patent Applicants
Top Patent Applicants
  • Calvin B. Grigsby (2)
  • Paul J. Patt (2)
  • John D. Hestenes (1)
  • Richard Donovan Short (1)

Total of 6 patent applications in 2008-2019.