Founded in 1907, Cimarron County is one of 77 counties in the state of Oklahoma. Historically, Cimarron County was formed from Seventh County (entire panhandle until 1907). The city of Boise City is the county seat. With FIPS code of 25, Cimarron County has a population of 2,248 and area of 1,835 square miles (4,753 km2).
List of all cities in Cimarron County, OK alphabetically
| City/Town | Postal Code | Area Code |
| Boise City, OK | 73933 | 580 |
| Felt, OK | 73937 | 580 |
| Kenton, OK | 73946 | 580 |
| Keyes, OK | 73947 | 580 |