What is the largest city in Tazewell County, IL?

Pekin is the largest city or town in Tazewell County, with about 31,781 residents.

How many ZIP codes are in Tazewell County?

Tazewell County includes 15 ZIP Code Tabulation Areas, including 61534, 61535, 61546, 61550, 61554.

What is the population of Tazewell County, IL?

About 130,290 people live in Tazewell County, based on American Community Survey 5-year estimates.

What counties border Tazewell County?

Tazewell County borders Peoria County, McLean County, Woodford County, Fulton County, Logan County, Mason County.

Tazewell County, IL: Cities, ZIP Codes & Local Data

Population

130,290

Land area

646sq mi

People per sq mi

202

ZIP codes

15

Tazewell County at a glance

It is the 16th most populous of 102 counties in Illinois.
Households here earn a median of $77,982 a year, 6% less than the Illinois figure of $83,390.
A typical owner-occupied home is valued at $167,500 (36% below Illinois) and median rent is $909 a month.
The biggest population centers are Pekin (31,781), East Peoria (22,324) and Morton (16,595).

Local data for Tazewell County, IL

Counts from official public data

Housing and community stats

Tazewell County, IL, American Community Survey 2020-2024

Full profile

Median household income

$77,982

Poverty rate

9.0%

Median home value

$167,500

Prices +6.7% in a year

Median rent

$909/mo

Homeownership

78.4%

Bachelor's or higher

28.4%

Median age

41.9

Average commute

20.8 min

Largest reported origins and ancestries: German Americans (36,432), Irish Americans (16,978), Italian Americans (4,723).

Home values and rents Income, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

3.7%

Aug 2026, -0.9 pts in a year

Average annual pay

$57,455

46,709 jobs, 2025

Income per person

$62,652

BEA, 2024

Federal spending

$852M

FY 2026, $6,484 per person

PPP loans

$227M

3,398 loans, 26,273 jobs reported

Campaign donations

$423K

Itemized, 2026 cycle

Economy Federal spending PPP loans

How people get to work

Tazewell County, IL, workers 16 and older. American Community Survey 5-year estimates

Drove alone79.6%
Carpooled6.6%
Public transit0.4%
Walked1.5%
Bicycle0.1%
Taxi, ride-hailing, motorcycle or other0.7%
Worked from home11.0%

Average one-way commute: 20.8 minutes for people who do not work from home.

Environment and hazard risk

Tazewell County, IL, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Moderate

Top: cold wave

Storm events since 1996

776

Most often thunderstorm wind

Flood insurance policies

115

0.2% of homes, county

July high / Jan low

86° / 18°F

37.6 inches of rain a year

Hazards, floods and storm history Check a flood zone 13 historic places

Health statistics

Share of adults in Tazewell County, IL, CDC PLACES estimates

All 40 measures

Obesity

36.3%

U.S. 33.3% +3.0 pts

Diabetes

11.2%

U.S. 12.1% -0.9 pts

Smoking

13.5%

U.S. 12.8% +0.7 pts

Uninsured (18-64)

6.9%

U.S. 11.1% -4.2 pts

Cities, towns and ZIP codes in Tazewell County

Population shown

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Frequently asked questions

What is the largest city in Tazewell County, IL?: Pekin is the largest city or town in Tazewell County, with about 31,781 residents.
How many ZIP codes are in Tazewell County?: Tazewell County includes 15 ZIP Code Tabulation Areas, including 61534, 61535, 61546, 61550, 61554.
What is the population of Tazewell County, IL?: About 130,290 people live in Tazewell County, based on American Community Survey 5-year estimates.
What counties border Tazewell County?: Tazewell County borders Peoria County, McLean County, Woodford County, Fulton County, Logan County, Mason County.