Founded in 1860, Ottawa County is one of 105 counties in the state of Kansas. Historically, Ottawa County was formed from unorganized area. The city of Minneapolis is the county seat. With FIPS code of 143, Ottawa County has a population of 5,838 and area of 721 square miles (1,867 km2).
List of all cities in Ottawa County, KS alphabetically
| City/Town | Postal Code | Area Code |
| Ada, KS | 67467 | 785 |
| Bennington, KS | 67422 | 785 |
| Culver, KS | 67484 | 785 |
| Delphos, KS | 67436 | 785 |
| Minneapolis, KS | 67467 | 785 |
| Tescott, KS | 67484 | 785 |
| Wells, KS | 67467 | 785 |