Tazewell County, Illinois Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 16th-largest in Illinois

The population of Tazewell County, Illinois is 130,555 as of the 2023 American Community Survey, making it the 16th-largest county in Illinois. The median household income is $76,704, the median home value is $164,500, and the median age is 41.7.

The population of Tazewell County has declined 4.2% since 2010 (135,487 → 129,821), a -0.30% annualized rate.

Tazewell County within Illinois · Source: US Census TIGER/Line via us-atlas

130,555

Population

-0.30%

Annual growth

202

People / sq mi

$76,704

Median Income

$164,500

Median Home Value

Tazewell County covers 646 sq mi of land at 202.0 people per square mile.

About Tazewell County, IL

Tazewell County is distinguished by its share of foreign-born residents, 15.0% of the population. With 130,555 residents, Tazewell County is a county in Illinois. It ranks #16 among counties in Illinois by population.

Households take in a median $76,704, comfortably near the US median of $78,538. The poverty rate, 5.7%, is on the lower side for US counties and below the national 12.4%. Homes carry a median value of $164,500, with typical rent around $898.

Educational attainment is on the higher side for US counties — 28.4% of adults hold a four-year degree, below the national 35.0%. About 9.7% of the workforce is home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.

Tazewell County Population History (2010-2024)

The county of Tazewell County had a population of 135,487 in 2010 and 129,821 in 2024, a -4.2% growth over 14 years. The peak was 136,297 in 2013. Average annual growth rate: -0.30%.

Tazewell County population, 2010–2024 · Source: U.S. Census Bureau — decennial census & Population Estimates

129,821

Population (2024)

135,487

Population (2010)

136,297

Peak (2013)

-0.30%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	135,487	-	-	estimate
2011	135,863	+376	+0.28%	estimate
2012	136,149	+286	+0.21%	estimate
2013	136,297	+148	+0.11%	estimate
2014	135,392	-905	-0.66%	estimate
2015	134,350	-1,042	-0.77%	estimate
2016	134,004	-346	-0.26%	estimate
2017	133,525	-479	-0.36%	estimate
2018	132,465	-1,060	-0.79%	estimate
2019	131,848	-617	-0.47%	estimate
2020	131,296	-552	-0.42%	estimate
2021	130,640	-656	-0.50%	estimate
2022	129,859	-781	-0.60%	estimate
2023	129,835	-24	-0.02%	estimate
2024	129,821	-14	-0.01%	estimate

Race & Ethnicity

White	93.9%
Black or African American	1.4%
Asian	0.0%
Hispanic or Latino (any race)	0.6%
Two or More Races	0.0%

Age & Sex

41.7

Median Age

50.4%

Female

49.6%

Male

19.6%

Age 65+

Age Distribution

Under 5

5.2%

5–9

6.4%

10–14

6.5%

15–19

6.4%

20–24

5.2%

25–34

11.8%

35–44

13.2%

45–54

12.5%

55–59

6.3%

60–64

7.1%

65–74

11.3%

75–84

5.9%

85+

2.4%

Children (under 15): 18.1% · Seniors (65+): 19.6%

Income & Poverty

Median household income	$76,704$-4,998 vs state
Mean household income	$95,638
Per-capita income	$40,072
Poverty rate	5.7%-2.5% vs state
Unemployment rate	2.4%
Employment-to-population	59.7%

Top Industries by Employment

Professional & business services

24.4%

Manufacturing

14.7%

Education & health care

9.5%

Finance & real estate

8.3%

Information

7.0%

Construction

6.7%

Retail trade

4.9%

Arts, entertainment & food

4.9%

The largest employment sector in Tazewell County is professional & business services, accounting for 24.4% of workers.

How residents commute

0.4%

Drive alone

1.4%

Carpool

80.7%

Public transit

9.7%

Work from home

20.9 min

Avg commute

Housing

$164,500$-86,000 vs state

Median home value

$898

Median rent

77.5%

Homeownership rate

58,664

Total housing units

91.7%

Occupied

8.3%

Vacant

22.5%

Renter-occupied

Social & access

94.9%

With health insurance

94.1%

With broadband internet

15.0%

Foreign-born

7.4%

Veterans (18+)

12.4%

With a disability

97.7%

Speak language other than English at home

Education

94.0%

High School+

28.4%

Bachelor's+

Largest cities in Illinois

Chicago (2,707,648)Aurora (179,867)Joliet (149,785)Naperville (149,424)Rockford (147,649)Elgin (114,106)Springfield (113,714)Peoria (112,126)Waukegan (88,919)Champaign (88,822)All Illinois cities →

Other counties in Illinois

Cook County (5,185,812)DuPage County (927,263)Lake County (711,885)Will County (698,450)Kane County (516,097)McHenry County (311,366)Winnebago County (283,289)Madison County (264,631)St. Clair County (254,777)Champaign County (206,098)All Illinois counties →

Part of Illinois

Illinois demographic profile All Illinois data →

Metro areas in Illinois

Chicago (9,359,555)St. Louis (2,809,414)Davenport (381,864)Peoria (365,773)Rockford (336,605)Champaign (236,196)Springfield (207,386)Bloomington (170,882)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Tazewell County, Illinois has a population of 130,555 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 16th-largest county in Illinois. Population density is 202 people per square mile.

The population of Tazewell County has declined 4.2% since 2010 (135,487 → 129,821), a -0.30% annualized rate.

The median household income in Tazewell County, Illinois is $76,704, with mean (average) household income of $95,638 and per-capita income of $40,072. 5.7% of residents live below the federal poverty level.

In Tazewell County, the largest racial and ethnic groups are White (93.9%), Black or African American (1.4%), Hispanic or Latino (0.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Tazewell County, Illinois is 41.7 years. Residents are 50.4% female and 49.6% male.

The median home value in Tazewell County is $164,500 and median monthly rent is $898. 77.5% of occupied housing units are owner-occupied. The county has 58,664 total housing units, 8.3% of which are vacant.

The largest employment sector in Tazewell County, Illinois is professional, scientific, and management services, employing 24.4% of workers. The unemployment rate is 2.4%.

Chicago is among the largest cities associated with Tazewell County, Illinois, with a population of 2,707,648.