Post Offices List in Karnes County, Texas:
| Falls City Post Office | 200 N Irvin St, Falls City, TX 78113 |
| Gillett Post Office | 21694 Fm 887, Gillett, TX 78116 |
| Karnes City Post Office | 404 E Wall St, Karnes City, TX 78118 |
| Kenedy Post Office | 223 S 2nd St, Kenedy, TX 78119 |
| Panna Maria Post Office | 13870 N Fm 81, Panna Maria, TX 78144 |
| Runge Post Office | 302 N Helena, Runge, TX 78151 |