Plain

County ZIP codes · Arkansas · FIPS 05019

Clark County, AR ZIP Codes

Clark County, Arkansas has 12 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 11 residential and 1 for PO boxes or a single organization. 9 of the residential ones lie mainly in Clark County and 2 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $48,253 in 71743 (Gurdon) to $56,089 in 71923 (Arkadelphia) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Clark County?

71721 · Beirne: –71728 · Curtis: –71743 · Gurdon: $48k71763 · Sparkman: $73k71772 · Whelen Springs: –71921 · Amity: $54k71923 · Arkadelphia: $56k71929 · Bismarck: $56k71962 · Okolona: $25k71998 · Arkadelphia: –71999 · Arkadelphia: –71923717637192171743719627192971721 · Beirne: –71728 · Curtis: –71743 · Gurdon: $48k71763 · Sparkman: $73k71772 · Whelen Springs: –71921 · Amity: $54k71923 · Arkadelphia: $56k71929 · Bismarck: $56k71962 · Okolona: $25k71998 · Arkadelphia: –71999 · Arkadelphia: –71923717637192171743719627192971721 · Beirne: –71728 · Curtis: –71743 · Gurdon: $48k71763 · Sparkman: $73k71772 · Whelen Springs: –71921 · Amity: $54k71923 · Arkadelphia: $56k71929 · Bismarck: $56k71962 · Okolona: $25k71998 · Arkadelphia: –719237176371921717437196271929
The residential ZIP codes of Clark County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024).<$54.1k$98.1k+no figure

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $48,253 and $55,747.

They carry 9 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 11 residential ZIP codes in Clark County

9 ZIP codes lie mainly in Clark County; 2 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Clark County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
71923 Arkadelphia 14,875 39 $56k $171k 89%
71921 Amity 3,427 17 $54k $109k 69%
71743 Gurdon 2,913 14 $48k $132k 100%
71962 Okolona 744 4 $25k $100k 100%
71998 Arkadelphia 669 9,041 – – 100%
71999 Arkadelphia 450 6,618 – – 100%
71728 Curtis 32 31 – – 100%
71772 Whelen Springs 18 95 – $94k 100%
71721 Beirne no residents 0 – – 100%

Partly in Clark County

Residential ZIP codes mainly in another county that reach at least 1% into Clark County, by their share here
In this county
71763 Sparkman 1,607 7 $73k $87k 4%
71929 Bismarck 4,627 46 $56k $214k 2%

Download the 12 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

4 ZIP codes of Clark County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Clark County and in the neighboring counties
ZIPIn ClarkElsewhere
7192389%Hot Spring County7%; Dallas County4%
719292%Hot Spring County98%
7192169%Pike County23%; Hot Spring County8%
717634%Dallas County85%; Ouachita County11%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Clark County without a residential area (GeoNames postal codes)
ZIPPostal name
71920Alpine

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Clark County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Clark County's ZIP codes use 2 prefixes: 717 and 719.

Three-digit prefixes of Clark County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Clark County's
PrefixSectional centerHereAll codes
717Little Rock, AR (SCF 720)533
719Little Rock, AR (SCF 720)744

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.