| Name | Monona County |
| State | Iowa |
| FIPS Code | 19133 |
| County Seat | Onawa |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 9,242 |
| Population Growth Rate(2000-2022) | -5.32% |
| Majority Ethnicity | White 98.5% |
| Public School Majority Ethnicity | White 85% |
| Partisan Voting Index | Republican:+19 |
| Unemployment Rate (November 2024) | 2.1% |
| Area Code(s) | 712 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 98.5% |
| African American | 0.31% |
| Hispanic | 0.72% |
| Asian | 0% |
| Native American | 0.24% |
| Hawaiin/Pacific Islander | 0.24% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 84.95% |
| African American | 1.27% |
| Hispanic | 5.02% |
| Asian | 0.24% |
| Native American | 4.38% |
| Hawaiin/Pacific Islander | 0% |