| Name | Marion County |
| State | Iowa |
| FIPS Code | 19125 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 33,388 |
| Population Growth Rate(2000-2022) | 0.32% |
| Majority Ethnicity | White 96.34% |
| Public School Majority Ethnicity | White 92% |
| Partisan Voting Index | Republican:+14 |
| Unemployment Rate | 2.5% |
| Race/Ethnicy | Percentage of Population (2018) |
|---|---|
| White | 96.34% |
| African American | 0.6% |
| Hispanic | 1.91% |
| Asian | 0.95% |
| Native American | 0.2% |
| Hawaiin/Pacific Islander | 0% |
| Race/Ethnicy | Percentage of Public School Students (2018) |
|---|---|
| White | 91.89% |
| African American | 1.68% |
| Hispanic | 2.77% |
| Asian | 1.57% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 0.02% |