| ZIP Code | ZIP Code Place Name | County | ZIP Code Type |
|---|---|---|---|
| 71721 | Beirne | Clark County | PO Box |
| 71728 | Curtis | Clark County | PO Box |
| 71743 | Gurdon | Clark County | Standard |
| 71763 | Sparkman | Dallas County | Standard |
| 71772 | Whelen Springs | Clark County | PO Box |
| 71920 | Alpine | Clark County | Standard |
| 71921 | Amity | Clark County | Standard |
| 71923 | Arkadelphia | Clark County | Standard |
| 71941 | Donaldson | Hot Spring County | Standard |
| 71962 | Okolona | Clark County | Standard |
| 71998 | Arkadelphia | Clark County | Unique |
| 71999 | Arkadelphia | Clark County | Unique |