There are 14 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
729442,807Mansfield
729401,836Huntington
729381,103Hartford
72945314Midland
729050Fort Smith

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