Post Offices List in Prowers County, Colorado:
| Granada Post Office | 111 S Main St, Granada, CO 81041 |
| Holly Post Office | 101 E Santa Fe St, Holly, CO 81047 |
| Lamar Post Office | 300 S 5th St, Lamar, CO 81052 |
| Wiley Post Office | 301 Main St, Wiley, CO 81092 |
| Hartman Post Office | 108 N Main St, Hartman, CO 81043 |