Zip Area Code

Hennessey, Oklahoma

Hennessey, Oklahoma, in Kingfisher County, has ZIP code 73742 and area code 405, with 572 as an overlay.

ZIP code
73742
Area codes
405, 572
Time zone
Central Time
Coordinates
36.0868, -97.8926

ZIP codes in Hennessey

ZIP codePost officeCountyArea codes
73742HennesseyKingfisher County405, 572

Area codes for Hennessey

  • Area code 405

    In service since 1947. Shares its area with 572. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

  • Area code 572

    In service since May 24, 2021. Shares its area with 405. Local calls are dialed with ten digits; dialing 1 plus ten digits also works.

Area codes here are matched from telephone rate centers, so a place near a boundary can have local numbers from either side of it.

Time zone

Hennessey is in the Central Time zone.

Towns near Hennessey