Founded in 1903, Roosevelt County is one of 33 counties in the state of New Mexico. Historically, Roosevelt County was formed from parts of Chaves County and Guadalupe County. The city of Portales is the county seat. With FIPS code of 41, Roosevelt County has a population of 19,019 and area of 2,449 square miles (6,343 km2).
List of all cities in Roosevelt County, NM alphabetically
| City/Town | Postal Code | Area Code |
| Arch, NM | 88130 | 575 |
| Causey, NM | 88113 | 575 |
| Dora, NM | 88115 | 575 |
| Elida, NM | 88116 | 575 |
| 88122 | 575 | |
| Floyd, NM | 88118 | 575 |
| Garrison, NM | 88132 | 575 |
| Kenna, NM | 88122 | 575 |
| Lingo, NM | 88123 | 575 |
| Milnesand, NM | 88125 | 575 |
| Pep, NM | 88126 | 575 |
| Portales, NM | 88123 | 575 |
| 88130 | 575 | |
| Rogers, NM | 88132 | 575 |