Zip Area Code

Osage County, Missouri

Osage County, Missouri, has 8 towns and 8 ZIP codes, in area code 573, with 235 as an overlay.

Towns in Osage County, A to Z

TownZIP codesArea codes
Bonnots Mill65016573, 235
Chamois65024573, 235
Freeburg65035573, 235
Koeltztown65048573, 235
Linn65051573, 235
Loose Creek65054573, 235
Mount Sterling65062573, 235
Westphalia65085573, 235

ZIP codes in Osage County

Area codes in Osage County

  • Area code 573

    In service since January 7, 1996. Shares its area with 235. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 235

    In service since March 24, 2024. Shares its area with 573. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.