Founded in 1920, Hidalgo County is one of 33 counties in the state of New Mexico. Historically, Hidalgo County was formed from part of Grant County. The city of Lordsburg is the county seat. With FIPS code of 23, Hidalgo County has a population of 4,074 and area of 3,446 square miles (8,925 km2).
List of all cities in Hidalgo County, NM alphabetically
| City/Town | Postal Code | Area Code |
| Animas, NM | 88020 | 575 |
| Cloverdale, NM | 88020 | 575 |
| Cotton City, NM | 88020 | 575 |
| Lordsburg, NM | 88009 | 575 |
| 88045 | 575 | |
| Playas, NM | 88009 | 575 |
| Road Forks, NM | 88045 | 575 |
| Rodeo, NM | 88056 | 575 |
| Separ, NM | 88045 | 575 |
| Virden, NM | 88045 | 575 |