Knollwood, Illinois

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Population in 2010: 1,747.
Males: 767  (43.9%)
Females: 980  (56.1%)
Median resident age:

39.3 years
Illinois median age:

39.1 years
Estimated median household income in 2022: $101,442
Knollwood:

$101,442
IL:

$76,708

Estimated per capita income in 2022: $52,998

Knollwood CDP income, earnings, and wages data

Estimated median house or condo value in 2022: $327,800
Knollwood:

$327,800
IL:

$251,600

Mean prices in 2022: all housing units: $416,990; detached houses: $461,490; townhouses or other attached units: $269,405; mobile homes: $7,369

Median gross rent in 2022: $1,771.

March 2022 cost of living index in Knollwood: 102.2 (near average, U.S. average is 100)
Percentage of residents living in poverty in 2022: 6.9%
(3.1% for White Non-Hispanic residents, 100.0% for Black residents, 4.9% for two or more races residents)

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  • Races in Knollwood, IL (2022)
    • 1,30474.4%White alone
    • 30717.5%Hispanic
    • 754.3%Black alone
    • 181.0%Asian alone
    • 171.0%Two or more races

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

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: Italian (8.7%), Irish (7.8%), German (6.7%), Czech (5.1%), Lithuanian (3.6%), Belgian (2.7%).

Current Local Time: CST time zone

147 residents are foreign born (5.2% Europe, 2.0% Latin America, 1.0% Asia).

This place:

8.4%
Illinois:

14.1%

Median real estate property taxes paid for housing units with mortgages in 2022: $6,564 (1.7%)
Median real estate property taxes paid for housing units with no mortgage in 2022: $7,217 (2.3%)

Nearest city with pop. 50,000+: Springfield, IL (10.1 miles , pop. 111,454).

Nearest city with pop. 200,000+: St. Louis, MO (96.1 miles , pop. 348,189).

Nearest city with pop. 1,000,000+: Chicago, IL (166.0 miles , pop. 2,896,016).

Nearest cities:

Sherman, IL (1.5 miles ),
Williamsville, IL (1.7 miles ),
Spaulding, IL (2.1 miles ),
Cantrall, IL (2.3 miles),
Riverton, IL (2.3 miles ),
Clear Lake, IL (2.7 miles ),
Grandview, IL (2.7 miles ),
Dawson, IL (2.8 miles )

Latitude: 39.92 N, Longitude: 89.58 W

Area code commonly used in this area: 217

Distribution of median household income in Knollwood, IL in 2022
Distribution of house value in Knollwood, IL in 2022
Unemployment in December 2023:
Here:

5.2%
Illinois:

4.2%
Air pollution and air quality trends
(lower is better)
AQI SO2 Ozone PM2.5
Air Quality Index

Air Quality Index (AQI) level in 2023 was 97.0. This is worse than average.

City:

97.0
U.S.:

72.6
Sulfur Dioxide Level

Sulfur Dioxide (SO2) [ppb] level in 2015 was 0.725. This is significantly better than average. Closest monitor was 7.7 miles away from the city center.

City:

0.725
U.S.:

1.515
Ozone Level

Ozone [ppb] level in 2010 was 28.8. This is about average. Closest monitor was 5.2 miles away from the city center.

City:

28.8
U.S.:

33.3
Particulate Matter Level

Particulate Matter (PM2.5) [µg/m3] level in 2023 was 11.6. This is significantly worse than average. Closest monitor was 6.9 miles away from the city center.

City:

11.6
U.S.:

8.1

Tornado activity:

Knollwood-area historical tornado activity is slightly above Illinois state average. It is 90% greater than the overall U.S. average.

On 6/14/1957, a category F4 (max. wind speeds 207-260 mph) tornado 10.5 miles away from the Knollwood place center killed 2 people and injured 50 people and caused between $500,000 and $5,000,000 in damages.

On 5/5/1977, a category F4 tornado 28.9 miles away from the place center injured 2 people and caused between $500,000 and $5,000,000 in damages.

Earthquake activity:

Knollwood-area historical earthquake activity is significantly above Illinois state average. It is 203% greater than the overall U.S. average.

On 4/18/2008 at 09:36:59, a magnitude 5.4 (5.1 MB, 4.8 MS, 5.4 MW, 5.2 MW, Class: Moderate, Intensity: VI - VII) earthquake occurred 136.3 miles away from Knollwood center
On 4/18/2008 at 09:36:59, a magnitude 5.2 (5.2 MW, Depth: 8.9 mi) earthquake occurred 136.3 miles away from Knollwood center
On 6/10/1987 at 23:48:54, a magnitude 5.1 (4.9 MB, 4.4 MS, 4.6 MS, 5.1 LG) earthquake occurred 118.4 miles away from the city center
On 6/18/2002 at 17:37:15, a magnitude 5.0 (4.3 MB, 4.6 MW, 5.0 LG) earthquake occurred 165.1 miles away from Knollwood center
On 4/18/2008 at 15:14:16, a magnitude 4.8 (4.5 MB, 4.8 MW, 4.6 MW, Class: Light, Intensity: IV - V) earthquake occurred 136.5 miles away from the city center
On 4/3/1974 at 23:05:02, a magnitude 4.7 (4.5 MB, 4.7 LG) earthquake occurred 121.6 miles away from the city center
Magnitude types: regional Lg-wave magnitude (LG), body-wave magnitude (MB), surface-wave magnitude (MS), moment magnitude (MW)

Natural disasters:

The number of natural disasters in Lake County (16) is near the US average (15).
Major Disasters (Presidential) Declared: 10
Emergencies Declared: 5

Causes of natural disasters: Storms: 9, Floods: 7, Tornadoes: 3, Snows: 2, Snowstorms: 2, Winter Storms: 2, Blizzard: 1, Hurricane: 1, Wind: 1, Other: 1 (Note: some incidents may be assigned to more than one category).

Hospitals and medical centers near Knollwood:

  • BROTHER JAMES COURT (Hospital, about 6 miles away; SPRINGFIELD, IL)
  • ST. JOHNS HOSPITAL HOME HEALTH (Home Health Center, about 9 miles away; SPRINGFIELD, IL)
  • ST JOHNS HOSPITAL Acute Care Hospitals (about 9 miles away; SPRINGFIELD, IL)
  • RUTLEDGE MANOR CARE HOME (Nursing Home, about 9 miles away; SPRINGFIELD, IL)
  • DAVITA - SPRINGFIELD CENTRAL DIALYSIS (Dialysis Facility, about 9 miles away; SPRINGFIELD, IL)
  • MEMORIAL HOME SERVICES (Home Health Center, about 9 miles away; SPRINGFIELD, IL)
  • HOSPICE CARE OF ILLINOIS (Hospital, about 9 miles away; SPRINGFIELD, IL)

Amtrak stations near Knollwood:

  • 9 miles: SPRINGFIELD (WASHINGTON & 3RD STS.) . Services: ticket office, fully wheelchair accessible, enclosed waiting area, public restrooms, public payphones, vending machines, free short-term parking, free long-term parking, call for car rental service, taxi stand, public transit connection.
  • 20 miles: LINCOLN (BROADWAY AT CHICAGO ST.) . Services: free short-term parking, free long-term parking.

Colleges/universities with over 2000 students nearest to Knollwood:

  • University of Illinois at Springfield (about 14 miles; Springfield, IL; Full-time enrollment: 3,748)
  • Lincoln Land Community College (about 14 miles; Springfield, IL; FT enrollment: 5,460)
  • Millikin University (about 33 miles; Decatur, IL; FT enrollment: 2,419)
  • Richland Community College (about 37 miles; Decatur, IL; FT enrollment: 2,434)
  • Illinois Wesleyan University (about 51 miles; Bloomington, IL; FT enrollment: 2,323)
  • Illinois State University (about 52 miles; Normal, IL; FT enrollment: 18,804)
  • Heartland Community College (about 53 miles; Normal, IL; FT enrollment: 3,958)

Points of interest:

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Notable location: Knollwood Fire Department (A). Display/hide its location on the map

Park in Knollwood: West Park (1). Display/hide its location on the map

Lake County has a predicted average indoor radon screening level between 2 and 4 pCi/L (pico curies per liter) - Moderate Potential
Average household size:
This place:

2.5 people
Illinois:

2.6 people

Percentage of family households:
This place:

67.2%
Whole state:

65.8%

Percentage of households with unmarried partners:
This place:

4.8%
Whole state:

6.3%


Likely homosexual households (counted as self-reported same-sex unmarried-partner households)
  • Lesbian couples: 0.7% of all households
  • Gay men: 0.1% of all households
98 people in nursing facilities/skilled-nursing facilities in 2010

For population 15 years and over in Knollwood:

Marital status in Knollwood, IL
  • Never married: 29.9%
  • Now married: 56.9%
  • Separated: 1.0%
  • Widowed: 5.3%
  • Divorced: 6.9%

For population 25 years and over in Knollwood:

  • High school or higher: 95.1%
  • Bachelor's degree or higher: 50.5%
  • Graduate or professional degree: 18.3%
  • Mean travel time to work (commute): 25.6 minutes
Educational Attainment in 2022
School Enrollment by Level of School in 2022
Education Gini index (Inequality in education)
Here:

11.6
Illinois average:

12.5

Travel time (in minutes) to work in 2022
Means of transportation to work in 2022 - Knollwood
Presidential Elections Results

Graphs represent county-level data. Detailed 2008 Election Results

Religion statistics for Knollwood, IL (based on Lake County data)

Religions Adherents in 2010
Religions Adherents - Change between 2000 and 2010
ReligionAdherentsCongregations
Catholic211,38029
Evangelical Protestant84,501211
Mainline Protestant36,96776
Other33,82262
Black Protestant7,82416
Orthodox4,6108
None324,358-
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: 121
Lake County:

1.71 / 10,000 pop.
Illinois:

2.24 / 10,000 pop.
Number of supercenters and club stores: 4
This county:

0.06 / 10,000 pop.
Illinois:

0.08 / 10,000 pop.
Number of convenience stores (no gas): 38
Here:

0.54 / 10,000 pop.
Illinois:

0.75 / 10,000 pop.
Number of convenience stores (with gas): 174
This county:

2.46 / 10,000 pop.
Illinois:

2.61 / 10,000 pop.
Number of full-service restaurants: 457
Lake County:

6.47 / 10,000 pop.
Illinois:

6.86 / 10,000 pop.
Adult diabetes rate:
This county:

7.3%
Illinois:

8.3%
Adult obesity rate:
This county:

24.2%
State:

25.2%
Low-income preschool obesity rate:
Here:

16.3%
State:

14.5%

6.06% of this county's 2021 resident taxpayers lived in other counties in 2020 ($110,528 average adjusted gross income)

Here:

6.06%
Illinois average:

5.09%

0.03% of residents moved from foreign countries ($301 average AGI)
Lake County:

0.03%
Illinois average:

0.01%

Top counties from which taxpayers relocated into this county between 2020 and 2021:
from Cook County, IL  2.86% ($125,398 average AGI)
from McHenry County, IL  0.41% ($65,388)
from DuPage County, IL  0.21% ($108,090)


6.71% of this county's 2020 resident taxpayers moved to other counties in 2021 ($163,220 average adjusted gross income)

Here:

6.71%
Illinois average:

6.10%

0.04% of residents moved to foreign countries ($308 average AGI)
Lake County:

0.04%
Illinois average:

0.01%

Top counties to which taxpayers relocated from this county between 2020 and 2021:
to Cook County, IL  1.73% ($143,390 average AGI)
to McHenry County, IL  0.52% ($83,934)
to Kenosha County, WI  0.39% ($71,395)

Strongest AM radio stations in Knollwood:

  • WMAY (970 AM; 1 kW; SPRINGFIELD, IL)
  • WTAX (1240 AM; 1 kW; SPRINGFIELD, IL; Owner: SAGA COMMUNICATIONS OF ILLINOIS, LLC)
  • KXEN (1010 AM; 50 kW; FESTUS-ST. LOUIS, MO; Owner: BDJ RADIO ENTERPRISES, LLC)
  • KMOX (1120 AM; 50 kW; ST. LOUIS, MO; Owner: INFINITY BROADCASTING OPERATIONS, INC.)
  • WFMB (1450 AM; 1 kW; SPRINGFIELD, IL; Owner: CAPSTAR TX LIMITED PARTNERSHIP)
  • WSCR (670 AM; 50 kW; CHICAGO, IL; Owner: INFINITY BROADCASTING OPERATIONS, INC.)
  • WLS (890 AM; 50 kW; CHICAGO, IL; Owner: WLS, INC.)
  • WGN (720 AM; 50 kW; CHICAGO, IL; Owner: WGN CONTINENTAL BROADCASTING CO.)
  • WBBM (780 AM; 50 kW; CHICAGO, IL; Owner: INFINITY BROADCASTING OPERATIONS, INC.)
  • WLLM (1370 AM; 1 kW; LINCOLN, IL; Owner: CORNERSTONE COMMUNITY RADIO, INC.)
  • WYLL (1160 AM; 50 kW; CHICAGO, IL; Owner: SCA LICENSE CORPORATION)
  • WMVP (1000 AM; 50 kW; CHICAGO, IL; Owner: ABC, INC.)
  • WVEL (1140 AM; daytime; 5 kW; PEKIN, IL)

Strongest FM radio stations in Knollwood:

  • WDBR (103.7 FM; SPRINGFIELD, IL; Owner: SAGA COMMUNICATIONS OF ILLINOIS, LLC)
  • WYVR (97.7 FM; PETERSBURG, IL; Owner: LONG NINE, INC.)
  • WLUJ (89.7 FM; SPRINGFIELD, IL; Owner: CORNERSTONE COMMUNITY RADIO, INC.)
  • WLWJ (88.1 FM; PETERSBURG, IL; Owner: CORNERSTONE COMMUNITY RADIO, INC.)
  • WUIS (91.9 FM; SPRINGFIELD, IL; Owner: UNIVERSITY OF IL AT SPRINGFIELD)
  • WFMB-FM (104.5 FM; SPRINGFIELD, IL; Owner: CAPSTAR TX LIMITED PARTNERSHIP)
  • WMHX (93.9 FM; LINCOLN, IL; Owner: SAGA COMMUNICATIONS OF ILLINOIS, LLC)
  • WNNS (98.7 FM; SPRINGFIELD, IL; Owner: LONG NINE, INC.)
  • WQLZ (92.7 FM; TAYLORVILLE, IL; Owner: LONG NINE, INC.)
  • WQNA (88.3 FM; SPRINGFIELD, IL; Owner: CAPITAL AREA CAREER CENTER)
  • WSCT (90.5 FM; SPRINGFIELD, IL; Owner: ILLINOIS BIBLE INSTITUTE)
  • WQQL (101.9 FM; SPRINGFIELD, IL; Owner: SAGA COMMUNICATIONS OF ILLINOIS, LLC)
  • WYMG (100.5 FM; JACKSONVILLE, IL; Owner: SAGA COMMUNICATIONS OF ILLINOIS, LLC)
  • WDKR (107.3 FM; MAROA, IL; Owner: WDKR, INC.)
  • WCVS-FM (96.7 FM; VIRDEN, IL; Owner: CAPSTAR TX LIMITED PARTNERSHIP)

TV broadcast stations around Knollwood:

  • WICS (Channel 20; SPRINGFIELD, IL; Owner: WICS LICENSEE, LLC)
  • WRSP-TV (Channel 55; SPRINGFIELD, IL; Owner: SPRINGFIELD BROADCASTING PARTNERS)
  • W08DP (Channel 8; SPRINGFIELD, IL; Owner: W. CENTRAL ILLINOIS EDUC'L TELECOMM. CORPORATION)
  • W33AY (Channel 33; SPRINGFIELD, IL; Owner: VENTANA TELEVISION, INC.)
  • WCFN (Channel 49; SPRINGFIELD, IL; Owner: NEXSTAR BROADCASTING OF CHAMPAIGN, L.L.C.)
  • W28BE (Channel 28; SPRINGFIELD, IL; Owner: THE MARIAN CENTER)
  • WSEC (Channel 14; JACKSONVILLE, IL; Owner: WEST CENTRAL ILLINOIS EDUCATIONAL TELECOMMUNICATIONS CORP.)
  • WBUI (Channel 23; DECATUR, IL; Owner: ACME TV LICENSES OF ILLINOIS, LLC)
  • WAND (Channel 17; DECATUR, IL; Owner: WAND(TV) PARTNERSHIP)

2002 - 2018 National Fire Incident Reporting System (NFIRS) incidents

    Fire incident distribution by year According to the data from the years 2002 - 2018 the average number of fire incidents per year is 15. The highest number of fires - 37 took place in 2010, and the least - 1 in 2002. The data has a constant trend.
    Fire incident types in Knollwood, IL When looking into fire subcategories, the most reports belonged to: Structure Fires (46.9%), and Outside Fires (27.5%).

    • Fire incident types reported to NFIRS in Knollwood, IL
    • 12146.9%Structure Fires
    • 7127.5%Outside Fires
    • 3714.3%Other
    • 2911.2%Mobile Property/Vehicle Fires
See full National Fire Incident Reporting System statistics for Knollwood, IL
Houses and condos Apartments
Most commonly used house heating fuel in houses and condos in Knollwood, IL
  • 95.4%Utility gas
  • 2.4%Electricity
  • 2.2%Bottled, tank, or LP gas
Most commonly used house heating fuel in apartments in Knollwood, IL
  • 53.9%Electricity
  • 46.1%Utility gas


Knollwood compared to Illinois state average:

  • Unemployed percentage significantly below state average.
  • Black race population percentage significantly below state average.
  • Median age above state average.
  • Foreign-born population percentage below state average.
  • Length of stay since moving in significantly above state average.
  • Number of rooms per house above state average.
  • Institutionalized population percentage significantly above state average.
  • Number of college students below state average.
  • Percentage of population with a bachelor's degree or higher above state average.
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