| Zip Code | City | Population ↓ |
|---|---|---|
| 87901 | Truth Or Consequences | 6,264 |
| 87935 | Elephant Butte | 1,718 |
| 87942 | Williamsburg | 1,542 |
| 87931 | Caballo | 706 |
| 87930 | Arrey | 408 |
| 88042 | Hillsboro | 327 |
| 87939 | Monticello | 267 |
| 87943 | Winston | 254 |
| 87933 | Derry | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Sierra County, New Mexico (US Census).