| Locality | Post Code |
|---|---|
| Clarkedale, Crittenden | 72325 |
| Crawfordsville, Crittenden | 72327 |
| Earle, Crittenden | 72331 |
| Edmondson, Crittenden | 72332 |
| Gilmore, Crittenden | 72339 |
| Hughes, Crittenden | 72348 |
| Jericho, Crittenden | 72327 |
| Marion, Crittenden | 72364 |
| Proctor, Crittenden | 72376 |
| Turrell, Crittenden | 72384 |
| Twist, Crittenden | 72331 |
| Tyronza, Crittenden | 72386 |
| West Memphis, Crittenden | 72301 |