Miami County, Kansas, includes the following primary ZIP codes:
- 66013: Bucyrus
- 66021: Edgerton (partially in Miami County)
- 66026: Fontana
- 66036: Hillsdale
- 66042: Lane (primarily Franklin County, extends into Miami)
- 66053: Louisburg
- 66064: Osawatomie
- 66071: Paola (county seat)
- 66083: Spring Hill (shared with Johnson County)
- 66092: Wellsville (partially in Miami County)