Post Offices List in Elk County, Kansas:
| Elk Falls Post Office | 712 7th St, Elk Falls, KS 67345 |
| Grenola Post Office | 115 S Main St, Grenola, KS 67346 |
| Howard Post Office | 135 E Randolph St, Howard, KS 67349 |
| Moline Post Office | 112 N Main St, Moline, KS 67353 |