Clark County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 41st-largest in Wisconsin
The population of Clark County, Wisconsin is 34,736 as of the 2023 American Community Survey, making it the 41st-largest county in Wisconsin. The median household income is $66,250, the median home value is $163,800, and the median age is 37.0.
The population of Clark County has grown 0.4% since 2010 (34,670 → 34,801), a +0.03% annualized rate.
34,736
Population
+0.03%
Annual growth
29
People / sq mi
$66,250
Median Income
$163,800
Median Home Value
Clark County covers 1,210 sq mi of land at 28.7 people per square mile.
About Clark County, WI
Clark County is defined demographically by education — 13.4% of adults hold a bachelor’s degree, below the national average. With 34,736 residents, Clark County is a county in Wisconsin. It ranks #41 among counties in Wisconsin by population.
Median household income is $66,250, below the US median of $78,538. Poverty runs at 7.4%, below the national 12.4%. The typical home is valued at $163,800, with typical rent around $786.
Four-year-degree attainment is near the bottom of the range for US counties, 13.4%, below the national 35.0%. About 12.0% of workers primarily work from home, below the national 14.0%, and the average commute runs about 22 minutes each way.
Clark County Population History (2010-2024)
The county of Clark County had a population of 34,670 in 2010 and 34,801 in 2024, a 0.4% growth over 14 years. The peak was 34,801 in 2024. Average annual growth rate: 0.03%.
34,801
Population (2024)
34,670
Population (2010)
34,801
Peak (2024)
0.03%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 34,670 |
| 2011 | 34,670 |
| 2012 | 34,433 |
| 2013 | 34,529 |
| 2014 | 34,348 |
| 2015 | 34,350 |
| 2016 | 34,512 |
| 2017 | 34,588 |
| 2018 | 34,737 |
| 2019 | 34,785 |
| 2020 | 34,629 |
| 2021 | 34,732 |
| 2022 | 34,742 |
| 2023 | 34,792 |
| 2024 | 34,801 |
Race & Ethnicity
| White | 92.4% |
| Black or African American | 0.8% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.9% |
| Two or More Races | 0.0% |
Age & Sex
37.0
Median Age
48.9%
Female
51.1%
Male
17.0%
Age 65+
Age Distribution
Children (under 15): 24.5% · Seniors (65+): 17.0%
Income & Poverty
| Median household income | $66,250$-9,420 vs state |
| Mean household income | $86,275 |
| Per-capita income | $31,744 |
| Poverty rate | 7.4%+0.8% vs state |
| Unemployment rate | 2.1% |
| Employment-to-population | 62.5% |
Top Industries by Employment
The largest employment sector in Clark County is manufacturing, accounting for 23.3% of workers.
How residents commute
0.0%
Drive alone
5.7%
Carpool
69.3%
Public transit
12.0%
Work from home
22.4 min
Avg commute
Housing
$163,800$-83,600 vs state
Median home value
$786
Median rent
77.9%
Homeownership rate
14,842
Total housing units
85.5%
Occupied
14.5%
Vacant
22.1%
Renter-occupied
Social & access
78.7%
With health insurance
83.1%
With broadband internet
18.2%
Foreign-born
6.2%
Veterans (18+)
12.0%
With a disability
82.6%
Speak language other than English at home
Education
82.5%
High School+
13.4%
Bachelor's+
Largest cities in Wisconsin
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County rankings
Frequently Asked Questions
Clark County, Wisconsin has a population of 34,736 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 41st-largest county in Wisconsin. Population density is 29 people per square mile.
The population of Clark County has grown 0.4% since 2010 (34,670 → 34,801), a +0.03% annualized rate.
The median household income in Clark County, Wisconsin is $66,250, with mean (average) household income of $86,275 and per-capita income of $31,744. 7.4% of residents live below the federal poverty level.
In Clark County, the largest racial and ethnic groups are White (92.4%), Hispanic or Latino (0.9%), Black or African American (0.8%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Clark County, Wisconsin is 37.0 years. Residents are 48.9% female and 51.1% male.
The median home value in Clark County is $163,800 and median monthly rent is $786. 77.9% of occupied housing units are owner-occupied. The county has 14,842 total housing units, 14.5% of which are vacant.
The largest employment sector in Clark County, Wisconsin is manufacturing, employing 23.3% of workers. The unemployment rate is 2.1%.
Milwaukee is among the largest cities associated with Clark County, Wisconsin, with a population of 569,756.
Clark County, WI Climate
Clark County, WI has an average annual temperature of 5.6°C (42°F) and receives about 838 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
5.6°C
Avg Temp
838
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -12° / 10° | 25 mm |
| February | -9° / 16° | 22 mm |
| March | -2° / 28° | 48 mm |
| April | 6° / 42° | 68 mm |
| May | 13° / 55° | 93 mm |
| June | 18° / 64° | 107 mm |
| July | 20° / 69° | 107 mm |
| August | 19° / 67° | 109 mm |
| September | 15° / 59° | 107 mm |
| October | 8° / 47° | 63 mm |
| November | 0° / 32° | 54 mm |
| December | -8° / 18° | 35 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 Clark County, WI
The most comfortable months to visit Clark County, WI are typically July, August and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 27°C high). The coldest is January (near -18°C low). August is usually the wettest month.
Where to stay near Clark County
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.