Post Offices List in Guadalupe County, New Mexico:
| Anton Chico Post Office | 1067 State Highway 386, Anton Chico, NM 87711 |
| Newkirk Post Office | 1006 Emerald Rd, Newkirk, NM 88431 |
| Santa Rosa Post Office | 120 S 5th St, Santa Rosa, NM 88435 |
| Vaughn Post Office | 800 W 8th St, Vaughn, NM 88353 |