Trempealeau County, Wisconsin Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 43rd-largest in Wisconsin
The population of Trempealeau County, Wisconsin is 30,786 as of the 2023 American Community Survey, making it the 43rd-largest county in Wisconsin. The median household income is $71,295, the median home value is $203,300, and the median age is 39.8.
The population of Trempealeau County has grown 6.8% since 2010 (28,846 → 30,801), a +0.47% annualized rate.
30,786
Population
+0.47%
Annual growth
42
People / sq mi
$71,295
Median Income
$203,300
Median Home Value
Trempealeau County covers 733 sq mi of land at 42.0 people per square mile.
About Trempealeau County, WI
The poverty rate is what most separates Trempealeau County from the typical county: 4.8% of residents live below the federal poverty line, against 12.4% nationally. Trempealeau County is a county in Wisconsin with a population of 30,786. It ranks #43 among counties in Wisconsin by population.
Households take in a median $71,295, comfortably below the US median of $78,538. Poverty is relatively low for US counties at 4.8%, below the national 12.4%. Homes carry a median value of $203,300, with typical rent around $887.
Degree attainment is mid-range for US counties: 20.2% of adults hold a four-year degree, below the national 35.0%. About 9.2% of the workforce is home-based, below the national 14.0%, and the average commute runs about 23 minutes each way.
Trempealeau County Population History (2010-2024)
The county of Trempealeau County had a population of 28,846 in 2010 and 30,801 in 2024, a 6.8% growth over 14 years. The peak was 30,939 in 2023. Average annual growth rate: 0.48%.
30,801
Population (2024)
28,846
Population (2010)
30,939
Peak (2023)
0.48%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 28,846 |
| 2011 | 28,994 |
| 2012 | 29,294 |
| 2013 | 29,468 |
| 2014 | 29,417 |
| 2015 | 29,444 |
| 2016 | 29,531 |
| 2017 | 29,352 |
| 2018 | 29,479 |
| 2019 | 29,583 |
| 2020 | 30,813 |
| 2021 | 30,722 |
| 2022 | 30,920 |
| 2023 | 30,939 |
| 2024 | 30,801 |
Race & Ethnicity
| White | 87.8% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.2% |
| Two or More Races | 0.0% |
Age & Sex
39.8
Median Age
49.1%
Female
50.9%
Male
18.3%
Age 65+
Age Distribution
Children (under 15): 22.2% · Seniors (65+): 18.3%
Income & Poverty
| Median household income | $71,295$-4,375 vs state |
| Mean household income | $89,298 |
| Per-capita income | $36,001 |
| Poverty rate | 4.8%-1.8% vs state |
| Unemployment rate | 1.5% |
| Employment-to-population | 65.8% |
Top Industries by Employment
The largest employment sector in Trempealeau County is manufacturing, accounting for 27.5% of workers.
How residents commute
0.0%
Drive alone
2.7%
Carpool
79.8%
Public transit
9.2%
Work from home
23.4 min
Avg commute
Housing
$203,300$-44,100 vs state
Median home value
$887
Median rent
73.8%
Homeownership rate
13,373
Total housing units
93.1%
Occupied
6.9%
Vacant
26.2%
Renter-occupied
Social & access
91.7%
With health insurance
90.3%
With broadband internet
17.9%
Foreign-born
7.2%
Veterans (18+)
10.9%
With a disability
89.5%
Speak language other than English at home
Education
91.6%
High School+
20.2%
Bachelor's+
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Frequently Asked Questions
Trempealeau County, Wisconsin has a population of 30,786 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 43rd-largest county in Wisconsin. Population density is 42 people per square mile.
The population of Trempealeau County has grown 6.8% since 2010 (28,846 → 30,801), a +0.47% annualized rate.
The median household income in Trempealeau County, Wisconsin is $71,295, with mean (average) household income of $89,298 and per-capita income of $36,001. 4.8% of residents live below the federal poverty level.
In Trempealeau County, the largest racial and ethnic groups are White (87.8%), Hispanic or Latino (1.2%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Trempealeau County, Wisconsin is 39.8 years. Residents are 49.1% female and 50.9% male.
The median home value in Trempealeau County is $203,300 and median monthly rent is $887. 73.8% of occupied housing units are owner-occupied. The county has 13,373 total housing units, 6.9% of which are vacant.
The largest employment sector in Trempealeau County, Wisconsin is manufacturing, employing 27.5% of workers. The unemployment rate is 1.5%.
Milwaukee is among the largest cities associated with Trempealeau County, Wisconsin, with a population of 569,756.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.