| Name | Iowa County |
| State | Iowa |
| FIPS Code | 19095 |
| County Seat | Marengo |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 16,320 |
| Population Growth Rate(2000-2022) | 1.88% |
| Majority Ethnicity | White 99.07% |
| Public School Majority Ethnicity | White 89% |
| Partisan Voting Index | Republican:+10 |
| Unemployment Rate (December 2024) | 2.6% |
| Area Code(s) | 319 / 641 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 99.07% |
| African American | 0.68% |
| Hispanic | 0.06% |
| Asian | 0.19% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 89.14% |
| African American | 1.12% |
| Hispanic | 6.63% |
| Asian | 0.37% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |