- Kaukauna (Population: 12,983)
- Kenosha (Population: 90,352)
- Keshena (Population: 1,394)
- Kewaskum (Population: 3,274)
- Kewaunee (Population: 2,806)
- Kiel (Population: 3,450)
- Kimberly (Population: 6,146)
- Kinnickinnic (Population: 1,400)
- Knowlton (Population: 1,688)
- Kohler (Population: 1,926)
- Koshkonong (Population: 3,395)
- Kossuth (Population: 2,033)
- Kronenwetter (Population: 5,369)
