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QuickFacts

Knox County, Illinois; Cass County, Illinois; Alexander County, Illinois; Peoria County, Illinois; McHenry County, Illinois; Kane County, Illinois

QuickFacts provides statistics for all states and counties. Also for cities and towns with a population of 5,000 or more.

Table

Knox County, Illinois
Cass County, Illinois
Alexander County, Illinois
Peoria County, Illinois
McHenry County, Illinois
Kane County, Illinois
Female persons, percent
49.0%
48.9%
51.6%
51.2%
49.8%
49.8%
People
Population
Population estimates, July 1, 2023, (V2023)
48,411
12,596
4,695
177,513
312,800
514,982
Population Estimates, July 1, 2022, (V2022)
48,620
12,638
4,841
178,000
311,558
514,139
Population estimates base, April 1, 2020, (V2023)
49,958
13,049
5,239
181,836
310,213
516,516
Population estimates base, April 1, 2020, (V2022)
49,958
13,049
5,239
181,836
310,213
516,516
Population, percent change - April 1, 2020 (estimates base) to July 1, 2023, (V2023)
-3.1%
-3.5%
-10.4%
-2.4%
0.8%
-0.3%
Population, percent change - April 1, 2020 (estimates base) to July 1, 2022, (V2022)
-2.7%
-3.1%
-7.6%
-2.1%
0.4%
-0.5%
Population, Census, April 1, 2020 49,967 13,042 5,240 181,830 310,229 516,522
Population, Census, April 1, 2010 52,919 13,642 8,238 186,494 308,760 515,269
Age and Sex
Persons under 5 years, percent
5.4%
6.7%
4.9%
6.5%
5.2%
5.7%
Persons under 18 years, percent
20.0%
24.3%
21.5%
23.6%
22.4%
23.6%
Persons 65 years and over, percent
22.5%
18.4%
25.0%
18.6%
16.7%
15.7%
Female persons, percent
49.0%
48.9%
51.6%
51.2%
49.8%
49.8%
Race and Hispanic Origin
White alone, percent
86.7%
90.6%
65.2%
72.5%
92.3%
86.0%
Black or African American alone, percent(a)
8.7%
5.6%
30.8%
19.3%
2.0%
6.0%
American Indian and Alaska Native alone, percent(a)
0.4%
0.9%
0.6%
0.5%
0.6%
1.1%
Asian alone, percent(a)
1.0%
0.9%
0.2%
4.4%
3.2%
4.7%
Native Hawaiian and Other Pacific Islander alone, percent(a)
Z
0.4%
0.2%
0.1%
0.1%
0.1%
Two or More Races, percent
3.1%
1.6%
2.9%
3.3%
1.8%
2.1%
Hispanic or Latino, percent(b)
6.4%
21.5%
2.6%
5.7%
15.3%
33.1%
White alone, not Hispanic or Latino, percent
81.4%
71.9%
63.5%
67.9%
78.3%
55.6%
Population Characteristics
Veterans, 2018-2022 2,983 620 361 8,376 13,870 19,086
Foreign born persons, percent, 2018-2022 3.3% 10.6% 0.8% 6.3% 9.0% 16.7%
Housing
Housing units, July 1, 2022, (V2022) 23,759 5,676 2,940 84,943 121,439 190,820
Owner-occupied housing unit rate, 2018-2022 68.7% 77.2% 77.9% 65.5% 82.2% 75.2%
Median value of owner-occupied housing units, 2018-2022 $96,800 $92,000 $58,600 $150,400 $270,600 $290,100
Median selected monthly owner costs -with a mortgage, 2018-2022 $1,086 $1,132 $1,110 $1,407 $2,035 $2,143
Median selected monthly owner costs -without a mortgage, 2018-2022 $482 $527 $427 $612 $876 $896
Median gross rent, 2018-2022 $694 $681 $652 $909 $1,310 $1,335
Building permits, 2022 3 0 0 65 900 1,411
Families & Living Arrangements
Households, 2018-2022 20,734 5,004 1,727 76,414 115,467 182,319
Persons per household, 2018-2022 2.20 2.56 2.97 2.31 2.68 2.81
Living in same house 1 year ago, percent of persons age 1 year+, 2018-2022 91.1% 87.9% 91.0% 87.5% 90.3% 88.6%
Language other than English spoken at home, percent of persons age 5 years+, 2018-2022 6.4% 20.1% 0.8% 8.6% 14.5% 31.5%
Computer and Internet Use
Households with a computer, percent, 2018-2022 86.5% 89.0% 76.1% 92.3% 96.8% 95.9%
Households with a broadband Internet subscription, percent, 2018-2022 79.2% 83.9% 60.2% 86.5% 94.7% 91.4%
Education
High school graduate or higher, percent of persons age 25 years+, 2018-2022 88.8% 86.2% 86.4% 92.9% 93.9% 86.5%
Bachelor's degree or higher, percent of persons age 25 years+, 2018-2022 20.4% 19.2% 10.3% 33.7% 35.3% 36.3%
Health
With a disability, under age 65 years, percent, 2018-2022 10.2% 9.8% 17.3% 9.2% 6.4% 5.9%
Persons without health insurance, under age 65 years, percent
7.2%
10.3%
7.4%
7.2%
5.9%
8.8%
Economy
In civilian labor force, total, percent of population age 16 years+, 2018-2022 53.3% 61.2% 48.0% 61.5% 69.9% 69.6%
In civilian labor force, female, percent of population age 16 years+, 2018-2022 53.4% 54.0% 41.5% 58.3% 64.5% 63.6%
Total accommodation and food services sales, 2017 ($1,000)(c) 83,693 10,812 D 404,723 544,939 1,058,328
Total health care and social assistance receipts/revenue, 2017 ($1,000)(c) 353,020 14,191 D 3,301,206 1,547,500 3,291,429
Total transportation and warehousing receipts/revenue, 2017 ($1,000)(c) 72,139 8,809 21,419 207,814 352,883 851,565
Total retail sales, 2017 ($1,000)(c) 862,310 114,138 18,605 2,544,677 3,898,193 6,685,953
Total retail sales per capita, 2017(c) $17,041 $9,113 $2,964 $13,931 $12,663 $12,565
Transportation
Mean travel time to work (minutes), workers age 16 years+, 2018-2022 21.2 20.4 27.7 18.8 31.3 28.7
Income & Poverty
Median household income (in 2022 dollars), 2018-2022 $50,263 $64,826 $40,365 $63,409 $100,101 $96,400
Per capita income in past 12 months (in 2022 dollars), 2018-2022 $28,840 $29,842 $21,922 $38,581 $46,322 $44,523
Persons in poverty, percent
15.0%
11.8%
23.4%
13.8%
5.9%
8.1%
Businesses
Businesses
Total employer establishments, 2021 975 232 80 4,248 8,039 13,181
Total employment, 2021 13,679 4,284 790 94,009 83,529 182,005
Total annual payroll, 2021 ($1,000) 493,464 209,167 38,482 6,282,458 4,383,793 10,090,364
Total employment, percent change, 2020-2021 -7.2% -7.0% -11.7% -5.4% -4.3% -4.7%
Total nonemployer establishments, 2021 2,273 673 290 10,201 25,721 40,302
All employer firms, Reference year 2017 936 273 129 3,758 7,135 11,656
Men-owned employer firms, Reference year 2017 494 S S 2,205 4,332 7,304
Women-owned employer firms, Reference year 2017 S S S 551 1,308 2,036
Minority-owned employer firms, Reference year 2017 S S S 278 699 2,259
Nonminority-owned employer firms, Reference year 2017 690 S 92 2,875 5,861 8,267
Veteran-owned employer firms, Reference year 2017 S S S S 346 S
Nonveteran-owned employer firms, Reference year 2017 685 S 102 2,924 6,147 9,928
Geography
Geography
Population per square mile, 2020 69.7 34.7 22.3 293.9 514.1 994.5
Population per square mile, 2010 73.9 36.3 35.0 301.2 511.9 990.8
Land area in square miles, 2020 716.39 375.75 235.39 618.73 603.40 519.37
Land area in square miles, 2010 716.40 375.82 235.51 619.21 603.17 520.06
FIPS Code 17095 17017 17003 17143 17111 17089
Value Notes

Methodology differences may exist between data sources, and so estimates from different sources are not comparable.

Some estimates presented here come from sample data, and thus have sampling errors that may render some apparent differences between geographies statistically indistinguishable. Click the Quick Info icon to the left of each row in TABLE view to learn about sampling error.

The vintage year (e.g., V2023) refers to the final year of the series (2020 thru 2023). Different vintage years of estimates are not comparable.

Users should exercise caution when comparing 2018-2022 ACS 5-year estimates to other ACS estimates. For more information, please visit the 2022 5-year ACS Comparison Guidance page.

Fact Notes Value Flags

QuickFacts data are derived from: Population Estimates, American Community Survey, Census of Population and Housing, Current Population Survey, Small Area Health Insurance Estimates, Small Area Income and Poverty Estimates, State and County Housing Unit Estimates, County Business Patterns, Nonemployer Statistics, Economic Census, Survey of Business Owners, Building Permits.

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