Founded in 1859, Wyandotte County is one of 105 counties in the state of Kansas. Historically, Wyandotte County was formed from Leavenworth and Johnson Counties. The city of Kansas City is the county seat. With FIPS code of 209, Wyandotte County has a population of 167,046 and area of 151 square miles (391 km2).
List of all cities in Wyandotte County, KS alphabetically
| City/Town | Postal Code | Area Code |
| Basehor, KS | 66012 | 913 |
| Bonner Springs, KS | 66012 | 913 |
| Edwardsville, KS | 66111 | 913 |
| 66113 | 913 | |
| K U Med Center, KS | 66160 | 913 |
| Kansas City, KS | 66101 | 913 |
| 66102 | 913 | |
| 66103 | 913 | |
| 66104 | 913 | |
| 66105 | 913 | |
| 66106 | 913 | |
| 66109 | 913 | |
| 66110 | 913 | |
| 66111 | 913 | |
| 66112 | 913 | |
| 66113 | 913 | |
| 66115 | 913 | |
| 66117 | 913 | |
| 66118 | 913 | |
| 66119 | 913 | |
| 66160 | 913 | |
| Kansas University Med Center, KS | 66160 | 913 |
| Lake of the Forest, KS | 66012 | 913 |
| Rosedale, KS | 66103 | 913 |