| Zip Code | City | Population ↓ |
|---|---|---|
| 71923 | Arkadelphia | 14,400 |
| 71921 | Amity | 3,594 |
| 71743 | Gurdon | 3,371 |
| 71962 | Okolona | 853 |
| 71998 | Arkadelphia | 779 |
| 71999 | Arkadelphia | 480 |
| 71728 | Curtis | 27 |
| 71772 | Whelen Springs | 19 |
| 71721 | Beirne | 0 |
The data shown reflect ZCTAs from the US Census. As of 2024, there are 9 ZCTAs in Clark County, Arkansas (US Census).