Monona County's estimated 2025 population is 8,467 with a growth rate of -0.15% in the past year according to the most recent United States census data. Monona County is the 84th largest county in Iowa. The 2010 population was 9,249 and has seen a growth of -8.45% 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, Asian and multiracial populations.
White
Two or more races
Native American
Black or African American
Other race
Native Hawaiian or Pacific Islander
Asian
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% |
| Asian | 0 | 0% |
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
