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County ZIP codes · Arkansas · FIPS 05131

Sebastian County, AR ZIP Codes

Sebastian County, Arkansas has 24 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 17 residential and 7 for PO boxes or a single organization. 14 of the residential ones lie mainly in Sebastian County and 3 mainly in a neighboring county; 4 cross the county line. Median household income ranges from $41,909 in 72904 to $87,983 in 72916 (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Sebastian County?

72901 · Fort Smith: $43k72903 · Fort Smith: $61k72904 · Fort Smith: $42k72905 · Fort Smith: –72908 · Fort Smith: $73k72916 · Fort Smith: $88k72923 · Barling: $54k72927 · Booneville: $58k72930 · Cecil: –72933 · Charleston: $59k72936 · Greenwood: $72k72937 · Hackett: $62k72938 · Hartford: $45k72940 · Huntington: $58k72941 · Lavaca: $74k72944 · Mansfield: $46k72945 · Midland: $37k72927729337293672944729307293872941729407293772916729237290372905729047290872901 · Fort Smith: $43k72903 · Fort Smith: $61k72904 · Fort Smith: $42k72905 · Fort Smith: –72908 · Fort Smith: $73k72916 · Fort Smith: $88k72923 · Barling: $54k72927 · Booneville: $58k72930 · Cecil: –72933 · Charleston: $59k72936 · Greenwood: $72k72937 · Hackett: $62k72938 · Hartford: $45k72940 · Huntington: $58k72941 · Lavaca: $74k72944 · Mansfield: $46k72945 · Midland: $37k729277293372936729447293072938729417294072937729167292372903729057290472901 · Fort Smith: $43k72903 · Fort Smith: $61k72904 · Fort Smith: $42k72905 · Fort Smith: –72908 · Fort Smith: $73k72916 · Fort Smith: $88k72923 · Barling: $54k72927 · Booneville: $58k72930 · Cecil: –72933 · Charleston: $59k72936 · Greenwood: $72k72937 · Hackett: $62k72938 · Hartford: $45k72940 · Huntington: $58k72941 · Lavaca: $74k72944 · Mansfield: $46k72945 · Midland: $37k729277293372936729447293072938729417294072937729167290372905
The residential ZIP codes of Sebastian 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 $46,419 and $71,829.

They carry 12 postal town names.

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

All 17 residential ZIP codes in Sebastian County

14 ZIP codes lie mainly in Sebastian County; 3 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Sebastian County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
72903 Fort Smith 27,242 1,681 $61k $236k 100%
72904 Fort Smith 21,296 1,556 $42k $112k 100%
72901 Fort Smith 19,819 2,269 $43k $118k 100%
72908 Fort Smith 14,288 1,862 $73k $197k 100%
72936 Greenwood 14,070 174 $72k $201k 100%
72916 Fort Smith 11,711 311 $88k $264k 100%
72941 Lavaca 5,140 118 $74k $170k 100%
72923 Barling 4,956 303 $54k $140k 100%
72937 Hackett 4,075 67 $62k $156k 100%
72944 Mansfield 2,599 35 $46k $117k 68%
72940 Huntington 1,829 42 $58k $167k 100%
72938 Hartford 933 18 $45k $162k 100%
72945 Midland 475 369 $37k $85k 100%
72905 Fort Smith no residents 0 – – 100%

Partly in Sebastian County

Residential ZIP codes mainly in another county that reach at least 1% into Sebastian County, by their share here
In this county
72930 Cecil 207 6 – $108k 23%
72933 Charleston 5,087 47 $59k $146k 12%
72927 Booneville 7,944 25 $58k $127k 2%

Download the 24 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 Sebastian County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Sebastian County and in the neighboring counties
ZIPIn SebastianElsewhere
729272%Logan County 68%; Scott County 30%
7293312%Franklin County 84%; Logan County 5%
7294468%Scott County 32%
7293023%Franklin County 77%

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

PO Box and single-organization ZIP codes

ZIP codes in Sebastian County without a residential area (GeoNames postal codes)
ZIPPostal name
72902Fort Smith
72906Fort Smith
72913Fort Smith
72914Fort Smith
72917Fort Smith
72918Fort Smith
72919Fort Smith

Source: GeoNames postal codes (CC BY 4.0).

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Sebastian County starts with 729.

Three-digit prefixes of Sebastian 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 Sebastian County's
PrefixSectional centerHereAll codes
729 Nw Arkansas, AR (SCF 727) 24 43

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