Clinton County, Iowa Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 12th-largest in Iowa
The population of Clinton County, Iowa is 46,383 as of the 2023 American Community Survey, making it the 12th-largest county in Iowa. The median household income is $65,177, the median home value is $153,800, and the median age is 42.5.
The population of Clinton County has declined 6.3% since 2010 (49,091 → 46,015), a -0.46% annualized rate.
46,383
Population
-0.46%
Annual growth
67
People / sq mi
$65,177
Median Income
$153,800
Median Home Value
Clinton County covers 695 sq mi of land at 66.7 people per square mile.
About Clinton County, IA
Remote work is unusually rare in Clinton County: 6.0% of workers primarily work from home, below the 14.0% national rate. Clinton County is a county in Iowa with a population of 46,383. It ranks #12 among counties in Iowa by population.
Median household income is $65,177, below the US median of $78,538. About 9.2% of residents live below the federal poverty level, below the national 12.4%. Median home value is $153,800, with typical rent around $825.
Roughly 22.1% of adults have a bachelor’s, below the national 35.0%. About 6.0% of the workforce is home-based, below the national 14.0%, and the average commute runs about 21 minutes each way.
Clinton County Population History (2010-2024)
The county of Clinton County had a population of 49,091 in 2010 and 46,015 in 2024, a -6.3% growth over 14 years. The peak was 49,105 in 2011. Average annual growth rate: -0.46%.
46,015
Population (2024)
49,091
Population (2010)
49,105
Peak (2011)
-0.46%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 49,091 |
| 2011 | 49,105 |
| 2012 | 48,711 |
| 2013 | 48,297 |
| 2014 | 47,921 |
| 2015 | 47,593 |
| 2016 | 47,285 |
| 2017 | 46,926 |
| 2018 | 46,506 |
| 2019 | 46,559 |
| 2020 | 46,432 |
| 2021 | 46,491 |
| 2022 | 46,268 |
| 2023 | 46,134 |
| 2024 | 46,015 |
Race & Ethnicity
| White | 90.3% |
| Black or African American | 2.9% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.0% |
Age & Sex
42.5
Median Age
50.7%
Female
49.3%
Male
20.0%
Age 65+
Age Distribution
Children (under 15): 18.9% · Seniors (65+): 20.0%
Income & Poverty
| Median household income | $65,177$-7,970 vs state |
| Mean household income | $85,010 |
| Per-capita income | $36,093 |
| Poverty rate | 9.2%+2.3% vs state |
| Unemployment rate | 2.3% |
| Employment-to-population | 58.6% |
Top Industries by Employment
The largest employment sector in Clinton County is professional & business services, accounting for 22.3% of workers.
How residents commute
0.4%
Drive alone
2.0%
Carpool
82.6%
Public transit
6.0%
Work from home
21.1 min
Avg commute
Housing
$153,800$-42,100 vs state
Median home value
$825
Median rent
73.1%
Homeownership rate
21,590
Total housing units
90.0%
Occupied
10.0%
Vacant
26.9%
Renter-occupied
Social & access
95.0%
With health insurance
89.8%
With broadband internet
23.9%
Foreign-born
8.8%
Veterans (18+)
13.5%
With a disability
97.1%
Speak language other than English at home
Education
92.7%
High School+
22.1%
Bachelor's+
Largest cities in Iowa
Other counties in Iowa
Part of Iowa
Metro areas in Iowa
County rankings
Frequently Asked Questions
Clinton County, Iowa has a population of 46,383 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 12th-largest county in Iowa. Population density is 67 people per square mile.
The population of Clinton County has declined 6.3% since 2010 (49,091 → 46,015), a -0.46% annualized rate.
The median household income in Clinton County, Iowa is $65,177, with mean (average) household income of $85,010 and per-capita income of $36,093. 9.2% of residents live below the federal poverty level.
In Clinton County, the largest racial and ethnic groups are White (90.3%), Black or African American (2.9%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Clinton County, Iowa is 42.5 years. Residents are 50.7% female and 49.3% male.
The median home value in Clinton County is $153,800 and median monthly rent is $825. 73.1% of occupied housing units are owner-occupied. The county has 21,590 total housing units, 10.0% of which are vacant.
The largest employment sector in Clinton County, Iowa is professional, scientific, and management services, employing 22.3% of workers. The unemployment rate is 2.3%.
Des Moines is among the largest cities associated with Clinton County, Iowa, with a population of 212,464.
Clinton County, IA Climate
Clinton County, IA has an average annual temperature of 9.1°C (48°F) and receives about 905 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
9.1°C
Avg Temp
905
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -7° / 19° | 34 mm |
| February | -4° / 24° | 30 mm |
| March | 3° / 37° | 61 mm |
| April | 10° / 49° | 87 mm |
| May | 16° / 61° | 99 mm |
| June | 21° / 70° | 114 mm |
| July | 23° / 73° | 98 mm |
| August | 22° / 71° | 108 mm |
| September | 18° / 64° | 99 mm |
| October | 11° / 52° | 68 mm |
| November | 3° / 37° | 60 mm |
| December | -4° / 24° | 47 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Clinton County, IA
The most comfortable months to visit Clinton County, IA are typically June, August and July, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -12°C low). June is usually the wettest month.
Where to stay near Clinton County
Visiting or relocating to Clinton County, IA? Compare hotels and short-term rentals across the county — live availability and prices.
Top-rated places to stay near Clinton County
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a move to Clinton County?
Get relocation and cost-of-living insights for Clinton County, IA by email. No spam, unsubscribe anytime.
More from Iowa
Population 497,441
Population 229,463
Population 174,302
Population 154,881
Full rankings of Iowa counties
Statewide data for Iowa
Population, race, income, age, and trends across Iowa
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.