Zip Code 71998 — Arkadelphia, AR
71998 is a ZIP Code associated with Arkadelphia, AR, located within Clark. 71998 ranks #5 out of 9 ZIP codes in Clark County by population (and #387 out of 615 in AR). The area supports an estimated population of 669 residents across Data Pending housing units, with a population density of 3,476.9 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (34.126090, -93.052750)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 71998 |
| Primary City | Arkadelphia |
| State / Province | AR |
| County | Clark |
| Total Population | 669 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 3,476.9 people/sq mi |
| Timezone | America/Chicago |
How 71998 Compares
| Metric | ZIP 71998 | Clark County | AR State Average |
|---|
| Population | 669 | 23,128 (Total) | 3,049,723 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 3,476.9 /sq mi | -- | -- |
| County Pop Rank | #5 of 9 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →