ZIP codes

ZIP codes in Sebastian County, Arkansas

Sebastian County has 17 ZIP codes. 13 lie entirely inside it and 4 are shared with neighboring counties, so part of their land and their people are elsewhere. About 129,947 people live in the parts inside it (ACS 2020–2024).

By the All Map Tools Team

ZIP codes: 17; With 1% or more of their land inside
Entirely inside: 13; 99% or more of their land
Shared with other counties: 4; Most with Franklin County (2)
Most populated ZIP: 72903; 27,242 people · Fort Smith
Least populated ZIP: 72945; 475 people · Midland; 1 more with nobody living there
Largest ZIP by land: 72936; 81 sq mi · Greenwood

Map of the ZIP codes in Sebastian County

Entirely in the county (99% or more of its land)
Shared, mostly in this county
Shared, mostly in other counties
Neighboring counties

Open in the interactive tool

Each area is a ZIP code with its number where it fits. Hover over one to see its name.

All ZIP codes in Sebastian County

17 ZIP codes in Sebastian County, AR, by number
ZIP code	Main city	Population	Land in the county	Residents in the county
72901	Fort Smith	19,819	100%	19,819
72903	Fort Smith	27,242	100%	27,242
72904	Fort Smith	21,296	100%	21,296
72905	—	0	100%	0
72908	Fort Smith	14,288	100%	14,288
72916	Fort Smith	11,711	100%	11,711
72923	Barling	4,956	100%	4,956
72927	Booneville	7,944	2.4%	≈ 322
72930	—	207	23%	≈ 119
72933	Charleston	5,087	12%	≈ 1,347
72936	Greenwood	14,070	100%	14,070
72937	Hackett	4,075	100%	4,075
72938	Hartford	933	100%	933
72940	Huntington	1,829	100%	1,829
72941	Barling	5,140	100%	5,140
72944	Mansfield	2,599	68%	≈ 2,325
72945	Midland	475	100%	475

ZIP codes shared with other counties

These 4 ZIP codes have part of their land in another county. The first figure is the share of their land in Sebastian County; then, where the rest lies.

72927 (Booneville): 2.4% here; 68% in Logan County and 30% in Scott County.
72930: 23% here; 77% in Franklin County.
72933 (Charleston): 12% here; 84% in Franklin County and 4.6% in Logan County.
72944 (Mansfield): 68% here; 32% in Scott County.

Cities and prefixes

By main city (the city, town or CDP each ZIP shares the most land with), the ones with the most are Fort Smith (5), Barling (2), Booneville (1), Charleston (1), Greenwood (1), and Hackett (1); 10 places in all.

All 17 start with the same three digits, 729: the prefix of the USPS sorting center that handles them.

Neighboring counties

Each one with its ZIP codes. Those without a page of their own open in the tool.

Tools for this county

ZIP codes by county or city The same ZIP codes on an interactive map, with the list as CSV or to copy County map with cities Its cities, towns and CDPs with their population ZIP codes in a radius The ZIP codes within 10 miles of its center, or any distance you like

Sources

U.S. Census Bureau, 2020 ZCTA to County, ZCTA to Place and ZCTA to Census Tract Relationship Files (and the 2022 County Subdivision to ZCTA file for Connecticut). Public domain.
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, table B01003 (population of each ZIP code, census tract and Connecticut town). Public domain.
U.S. Census Bureau, Vintage 2025 Population Estimates (county population) and 2025 Gazetteer Files (land area and interior point of each ZIP code). Public domain.
U.S. Census Bureau, Cartographic Boundary Files: ZCTAs 2020 and counties 2025, 1:500,000; county adjacency file 2025. Public domain.

How we count. ZIP codes here are the Census Bureau’s ZIP Code Tabulation Areas (ZCTAs), the areas it draws to match USPS ZIP codes; ZIPs with no area of their own (PO boxes, single buildings) aren’t included. A ZIP can cross county lines: “Land in the county” is the exact share of its land inside, from the Census relationship files. “Residents in the county” is the whole ZIP for those entirely inside; for shared ones it’s an estimate, spreading the people of each census tract over the land it shares with the ZIP. Population: ACS 2020–2024. Methodology.

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