Zip Area Code

Caldwell County, Missouri

Caldwell County, Missouri, has 7 towns and 7 ZIP codes, in area codes 816 (overlay 975) and 660.

Towns in Caldwell County, A to Z

TownZIP codesArea codes
Braymer64624660
Breckenridge64625816, 975
Cowgill64637660
Hamilton64644816, 975
Kidder64649816, 975
Kingston64650816, 975
Polo64671660

ZIP codes in Caldwell County

Area codes in Caldwell County

  • Area code 816

    In service since 1947. Shares its area with 975. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 975

    In service since October 13, 2023. Shares its area with 816. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 660

    In service since October 12, 1997. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.