| Locality | Postal Code |
|---|---|
| Postal/ZIP Codes in Artesia, Eddy | 88210 |
| Postal/ZIP Codes in Atoka, Eddy | 88210 |
| Postal/ZIP Codes in Carlsbad, Eddy | 88220, 88221 |
| Postal/ZIP Codes in Carlsbad Caverns National Park, Eddy | 88220 |
| Postal/ZIP Codes in Happy Valley, Eddy | 88220 |
| Postal/ZIP Codes in Hope, Eddy | 88250 |
| Postal/ZIP Codes in Lakewood, Eddy | 88254 |
| Postal/ZIP Codes in Loco Hills, Eddy | 88255 |
| Postal/ZIP Codes in Loving, Eddy | 88256 |
| Postal/ZIP Codes in Malaga, Eddy | 88263 |
| Postal/ZIP Codes in Seven Rivers, Eddy | 88254 |
| Postal/ZIP Codes in Whites City, Eddy | 88268 |