Trempealeau County's estimated 2026 population is 30,525 with a growth rate of -0.45% in the past year according to the most recent United States census data. Trempealeau County is the 43rd largest county in Wisconsin. The 2010 population was 28,846 and has seen a growth of 5.82% since that time.
Data after 2023 is projected based on recent change
The racial composition of Trempealeau County includes 87.78% White, 6.93% other race, and smaller percentages for Native American, Black or African American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
White (87.78%)
Other race (6.93%)
Two or more races (3.47%)
Native American (0.7%)
Black or African American (0.5%)
Asian (0.41%)
Native Hawaiian or Pacific Islander (0.2%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 27,024 | 87.78% |
| Other race | 2,135 | 6.93% |
| Two or more races | 1,068 | 3.47% |
| Native American | 216 | 0.7% |
| Black or African American | 154 | 0.5% |
| Asian | 126 | 0.41% |
| Native Hawaiian or Pacific Islander | 63 | 0.2% |
Married
Widowed
Divorced
Separated
Never Married
Trempealeau County's average per capita income is $48,233. Household income levels show a median of $71,295. The poverty rate stands at 8.47%.
Name | Median | Mean |
|---|---|---|
| Married Families | $99,626 | $117,130 |
| Families | $90,464 | $106,891 |
| Households | $71,295 | $89,298 |
| Non Families | $44,086 | $53,199 |
Average Income
Median Household Income
Poverty Rate
