8 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Ixonia | Jefferson County | 2,665 |
| Independence | Trempealeau County | 1,472 |
| Iola | Waupaca County | 1,193 |
| Iron Ridge | Dodge County | 925 |
| Iron River | Bayfield County | 750 |
| Ironton | Juneau County | 255 |
| Iron Belt | Iron County | 136 |
| Ingram | Rusk County | 70 |