ZIP Codes of Miller County, AR

Population & People
Population & People
Total Population
42,360
Household Income
Household Income
Median Income
$49,150
Housing
Housing
Total Housing Units
19,844
Business & Economy
Business & Economy
Total Businesses
727
Employment
Employment
Employment Rate
48.66%
Education
Education
Bachelor's Degree+
14.98%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:5 ZIP Codes (4 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:327 / 870
Timezone:Central (GMT -06:00)
Local Time:11:52:42 PM
Population:42,360 [See All]
FIPS:05091
CBSA:Texarkana, TX-AR
Land Area:640 sq mi
Water Area:13 sq mi
Coordinates:33.2943, -93.8798
Quick Link:
https://www.zip-codes.com/county/ar-miller.asp
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Notable income spread
Median income ranges $24,746 to $65,691 across ZIPs — a 2.7× gap.

Standout ZIPs in this County


Most Populous
Texarkana · 35,720 people
84.3% of county total
Highest Income
Doddridge · $65,691 median
1.3× county average
Largest Land Area
Texarkana · 276.5 sq mi
Spans the most ground
Fastest Growth
Doddridge · 8.0% (10-yr)
1,673 → 1,807 residents
Most Educated
Fouke · 17.5% bachelor's+
492 of 2,810 adults 25+

Things worth knowing about Miller County


42,360 residents live across 5 ZIPs covering 640 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 43,537 to 42,360 from 2014 to 2024 — a -2.7% change. 2 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 71834 (Doddridge, $65,691 median) and poorest ZIP 71839 (Garland City, $24,746) are 15.2 miles apart — a 2.7× income gap across local geography.

Median home values vary 2.6× across this county — from $61,200 in 71834 (Doddridge) to $161,000 in 71854 (Texarkana).

Density varies 17× across the county — from 8 people/sq mi in 71839 (Garland City) to 129 in 71854 (Texarkana).

Educational attainment ranges from 11.2% bachelor's+ in 71834 (Doddridge) to 17.5% in 71837 (Fouke) — the breadth of educational profiles across the area.

Within Arkansas, this is the #16 most populous of 78 counties and ranks #56 for median household income .

Weighted by population, the typical household earns about $48,763 across the county — reflecting what a typical resident sees, not a simple ZIP average.

15.0% of adults age 25+ hold a bachelor's degree or higher (4,315 of 28,806 reporting).

4 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Miller County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
640
square miles
Avg density
66.2
people per sq mi
Population
42,360
across 5 ZIPs
Texarkana
276.5 sq mi
35,720 residents
Fouke
161.3 sq mi
4,424 residents
Doddridge
149.2 sq mi
1,807 residents

Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Texarkana

All ZIP Codes in Miller County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
71854TexarkanaStandard35,720$46,878276.5-0.8%
71837FoukeStandard4,424$59,286161.3-18.8%
71834DoddridgeStandard1,807$65,691149.28.0%
71839Garland CityStandard409$24,74653.11.0%
71840GenoaPO Box0.0

Adjacent & Nearby Counties