There are 13 zip codes in Sebastian County, Arkansas. The most populated is 72903, located in Fort Smith. * 2024 populations estimated based on the latest ACS 5-year data.

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Zip Code
Population
City
7290325,696Fort Smith
7290422,539Fort Smith
7290120,783Fort Smith
7293614,285Greenwood
7290813,860Fort Smith
7291611,290Fort Smith
729415,016Lavaca
729234,901Barling
729373,246Hackett
729401,836Huntington
729381,103Hartford
72945314Midland
72905Fort Smith
showing: 13 rows

Zip Codes in Sebastian County, Arkansas by Population (2024)