| Place Name | Columbus City Township |
| Place Type | Township |
| ZIP Code(s) | 52737 52738 |
| County | Louisa County |
| Area Code(s) | 319 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 2,910 |
| Majority Ethnicity | White 54.79% |
| US Congressional District(s) | Iowa 2nd |
| State House Districts | 88 |
| State Senate Districts | 44 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 54.79% |
| African American | 1.62% |
| Hispanic | 0.5% |
| Asian | 11.92% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 31.17% |