Merrimac is a village located in Sauk County, Wisconsin. Merrimac has a 2025 population of 527 . Merrimac is currently growing at a rate of 0.19% annually and its population has increased by 1.35% since the most recent census, which recorded a population of 520 in 2020.
The average household income in Merrimac is $122,626 with a poverty rate of 4.87%. The median age in Merrimac is 38 years: 36.9 years for males, and 38 years for females. For every 100 females there are 124.6 males.
Data after 2023 is projected based on recent change
The racial composition of Merrimac includes 91.13% White, 3.48% Black or African American, and smaller percentages for other race and multiracial populations.
White (91.13%)
Two or more races (3.65%)
Black or African American (3.48%)
Other race (1.74%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 524 | 91.13% |
| Two or more races | 21 | 3.65% |
| Black or African American | 20 | 3.48% |
| Other race | 10 | 1.74% |
Married
Widowed
Divorced
Separated
Never Married
Merrimac's average per capita income is $61,250. Household income levels show a median of $102,344. The poverty rate stands at 4.87%.
Name | Median | Mean |
|---|---|---|
| Families | $119,286 | $133,847 |
| Married Families | $118,571 | - |
| Households | $102,344 | $122,626 |
| Non Families | $63,618 | $86,925 |
Average Income
Median Household Income
Poverty Rate