Clark County, AR ZIP codes
There are 10 ZIP codes in Clark County, AR, in 8 towns, from 71721 to 71999. The largest are 71923 (Arkadelphia), 71743 (Gurdon) and 71921 (Amity).
The county seat is Arkadelphia.
- ZIP codes
- 10
- Towns
- 8
- County seat
- Arkadelphia
- County FIPS
05019- State
- Arkansas
- Population
- 21,125
- Median household income
- $52,034
- Land area
- 866 sq mi
- Metro area
- Arkadelphia
Clark County ZIP codes by town
- Arkadelphia (county seat)
- 71923, 71998, 71999
Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.
Map of Clark County ZIP codes
The ZIP codes of Clark County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Clark County in numbers
About 21,125 people live in Clark County, in 8,121 households, the 31st most populous of Arkansas's 75 counties. The median household income is $52,034 a year, 14% below the Arkansas median of $60,773 (US: $80,734). The median owner-occupied home is valued at $155,000 (18% below the Arkansas median), and median gross rent is $793 a month. The median age is 32.0; 26.2% of adults 25 and over hold a bachelor's degree or higher (25.7% across Arkansas); the average commute takes 21 minutes.
| Population | 21,125 |
|---|---|
| Households | 8,121 |
| Median age | 32.0 |
| Median household income | $52,034 |
| Median home value | $155,000 |
| Median gross rent | $793 |
| Bachelor's degree or higher | 26.2% |
| Mean commute | 21.4 min |
| Population density | 24 / sq mi |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.
Largest towns in Clark County
| Town | ZIP codes | Population |
|---|---|---|
| Arkadelphia | 3 | 10,099 |
| Gurdon | 1 | 1,625 |
| Amity | 1 | 740 |
| Okolona | 1 | 287 |
| Whelen Springs | 1 | 52 |
| Curtis | 1 | 32 |
Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.
Neighbouring counties
Counties that share a ZIP code with Clark County.
Not sure you are in Clark County? What county am I in? answers from your location, near a county line included.
Every ZIP code in Clark County, with figures
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
71721 | Beirne , AR | Standard | 0 | — | — |
71728 | Curtis , AR | Standard | 32 | — | — |
71743 | Gurdon , AR | Standard | 2,913 | $48,253 | $132,200 |
71772 | Whelen Springs , AR | Standard | 18 | — | $94,200 |
71920 | Alpine , AR | No street area | — | — | — |
71921 | Amity , AR | Standard | 3,427 | $54,271 | $109,000 |
71923 | Arkadelphia , AR | Standard | 14,875 | $56,089 | $170,600 |
71962 | Okolona , AR | Standard | 744 | $24,578 | $100,200 |
71998 | Arkadelphia , AR | Standard | 669 | — | — |
71999 | Arkadelphia , AR | Standard | 450 | — | — |
Cite this page
zipcodes.pro. “Clark County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ar/county/clark
Underlying data is public domain or openly licensed — sources, vintages and licences.