14 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Independence | Jackson County | 119,604 |
| Imperial | Jefferson County | 5,554 |
| Ironton | Iron County | 1,435 |
| Indian Lake | Crawford County | 1,250 |
| Iberia | Miller County | 734 |
| Innsbrook | Lincoln County | 673 |
| Iron Mountain Lake | Iron County | 648 |
| Indian Point | Stone County | 607 |
| Irondale | Washington County | 368 |
| Iantha | Barton County | 95 |
| Ionia | Benton County | 80 |
| Irwin | Barton County | 51 |
| Iatan | Platte County | 43 |
| Irena | Harrison County | 12 |