Founded in 1868, Wallace County is one of 105 counties in the state of Kansas. Historically, Wallace County was formed from unorganized area. The city of Sharon Springs is the county seat. With FIPS code of 199, Wallace County has a population of 1,508 and area of 914 square miles (2,367 km2).
List of all cities in Wallace County, KS alphabetically
| City/Town | Postal Code | Area Code |
| Sharon Springs, KS | 67758 | 785 |
| Wallace, KS | 67761 | 785 |
| Weskan, KS | 67762 | 785 |