Founded on Jan 15, 1851, Winnebago County is one of 99 counties in the state of Iowa. Historically, Winnebago County was formed from Kossuth County. The city of Forest City is the county seat. With FIPS code of 189, Winnebago County has a population of 10,656 and area of 400 square miles (1,036 km2).
List of all cities in Winnebago County, IA alphabetically
| City/Town | Postal Code | Area Code |
| Buffalo Center, IA | 50424 | 641 |
| Forest City, IA | 50436 | 641 |
| Lake Mills, IA | 50450 | 641 |
| Leland, IA | 50453 | 641 |
| Neils, IA | 50453 | 641 |
| Rake, IA | 50465 | 641 |
| Scarville, IA | 50473 | 641 |
| Thompson, IA | 50478 | 641 |