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Clinton County, IA

14 cities and towns and 15 ZIP codes in Clinton County, Iowa.

Population

46,268

Land area

695sq mi

People per sq mi

67

ZIP codes

15

Cities and towns in Clinton County

Full map

Clinton County at a glance

  • It is the 12th most populous of 99 counties in Iowa.
  • Households here earn a median of $66,981 a year, 11% less than the Iowa figure of $75,059.
  • A typical owner-occupied home is valued at $160,600 (23% below Iowa) and median rent is $850 a month.
  • The biggest population centers are Clinton (24,322), DeWitt (5,546) and Camanche (4,550).

Local data for Clinton County, IA

Counts from official public data

Housing and community stats

Clinton County, IA, American Community Survey 2020-2024

Full profile

Median household income

$66,981

Poverty rate

13.2%

Median home value

$160,600

Prices +5.1% in a year

Median rent

$850/mo

Homeownership

74.5%

Bachelor's or higher

22.4%

Median age

42.4

Average commute

21.7 min

Largest reported origins and ancestries: German Americans (16,502), Irish Americans (7,575), Dutch Americans (1,613).

Home values and rentsIncome, education and commute

Economy and federal money

Jobs, income, federal spending and pandemic loans

Details

Unemployment rate

4.6%

Sep 2026, +0.1 pts in a year

Average annual pay

$55,076

18,870 jobs, 2025

Income per person

$55,587

BEA, 2024

Federal spending

$337M

FY 2026, $7,250 per person

PPP loans

$71.7M

2,317 loans, 9,177 jobs reported

Campaign donations

$148K

Itemized, 2026 cycle

EconomyFederal spendingPPP loans

How people get to work

Clinton County, IA, workers 16 and older. American Community Survey 5-year estimates

  • Drove alone82.1%
  • Carpooled6.0%
  • Public transit0.4%
  • Walked2.7%
  • Bicycle0.2%
  • Taxi, ride-hailing, motorcycle or other1.8%
  • Worked from home6.8%

Average one-way commute: 21.7 minutes for people who do not work from home.

Environment and hazard risk

Clinton County, IA, from FEMA, NOAA and EPA

Full report

Natural hazard risk

Relatively Low

Top: strong wind

Storm events since 1996

696

Most often thunderstorm wind

Flood insurance policies

108

0.5% of homes, county

July high / Jan low

84° / 14°F

36.4 inches of rain a year

Hazards, floods and storm historyCheck a flood zone27 historic places

Health statistics

Share of adults in Clinton County, IA, CDC PLACES estimates

All 40 measures

Obesity

39.3%

U.S. 33.3% +6.0 pts

Diabetes

12.7%

U.S. 12.1% +0.6 pts

Smoking

16.9%

U.S. 12.8% +4.1 pts

Uninsured (18-64)

7.4%

U.S. 11.1% -3.7 pts

Cities, towns and ZIP codes in Clinton County

Population shown

·

Frequently asked questions

What is the largest city in Clinton County, IA?
Clinton is the largest city or town in Clinton County, with about 24,322 residents.
How many ZIP codes are in Clinton County?
Clinton County includes 15 ZIP Code Tabulation Areas, including 52037, 52254, 52701, 52727, 52729.
What is the population of Clinton County, IA?
About 46,268 people live in Clinton County, based on American Community Survey 5-year estimates.
What counties border Clinton County?
Clinton County borders Scott County, Rock Island County, IL, Whiteside County, IL, Jones County, Jackson County, Cedar County, Carroll County, IL.

Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023

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