Columbia County's estimated 2026 population is 58,259 with a growth rate of 0.22% in the past year according to the most recent United States census data. Columbia County is the 26th largest county in Wisconsin. The 2010 population was 56,854 and has seen a growth of 2.47% since that time.
Data after 2023 is projected based on recent change
Overall: 43.7 years
Female: 44.4 years
Male: 43.1 years
There are 46,300 adults, (11,422 of whom are seniors) in Columbia County.
Female: 28,454 (48.8%)
Male: 29,818 (51.2%)
The racial composition of Columbia County includes 91.04% White, and smaller percentages for Black or African American, other race, Asian, Native American and multiracial populations.
Race | Population | Percentage (of total) |
|---|---|---|
| White | 53,053 | 91.04% |
| Two or more races | 2,525 | 4.33% |
| Black or African American | 1,062 | 1.82% |
| Other race | 853 | 1.46% |
| Asian | 466 | 0.8% |
| Native American | 313 | 0.54% |
Columbia County's average per capita income is $54,669. Household income levels show a median of $85,351. The poverty rate stands at 7.75%.
Name | Median | Mean |
|---|---|---|
| Married Families | $117,151 | $132,683 |
| Families | $101,724 | $121,224 |
| Households | $85,351 | $102,726 |
| Non Families | $50,431 | $60,995 |
Average Income
Median Household Income
Poverty Rate
