Monona County's estimated 2025 population is 8,355 with a growth rate of -0.88% in the past year according to the most recent United States census data. Monona County is the 85th largest county in Iowa. The 2010 population was 9,249 and has seen a growth of -9.67% since that time.
Data after 2023 is projected based on recent change
The racial composition of Monona County includes 94.35% White, and smaller percentages for Native American, Black or African American, other race, Native Hawaiian or Pacific Islander and multiracial populations.
White (94.35%)
Two or more races (4.69%)
Native American (0.65%)
Black or African American (0.15%)
Other race (0.09%)
Native Hawaiian or Pacific Islander (0.07%)
Race | Population | Percentage (of total) |
|---|---|---|
| White | 8,132 | 94.35% |
| Two or more races | 404 | 4.69% |
| Native American | 56 | 0.65% |
| Black or African American | 13 | 0.15% |
| Other race | 8 | 0.09% |
| Native Hawaiian or Pacific Islander | 6 | 0.07% |
Married
Widowed
Divorced
Separated
Never Married
Monona County's average per capita income is $42,167. Household income levels show a median of $62,944. The poverty rate stands at 11.22%.
Name | Median | Mean |
|---|---|---|
| Married Families | $89,839 | - |
| Families | $80,893 | $93,619 |
| Households | $62,944 | $76,738 |
| Non Families | $35,931 | $46,965 |
Average Income
Median Household Income
Poverty Rate
