ZIP Code 73742

73742 is one of Oklahoma's ZIP codes, delivering to addresses in Hennessey, Kingfisher County.

City: Hennessey
County: Kingfisher County
State: Oklahoma
Prefix: 737xx

Where this code sits

73742 is part of the 737xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hennessey.

Hennessey Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73742 delivers to without sharing its boundary.

ZIP codes nearest 73742

The ZIP codes whose reference points sit closest to 73742.
ZIP code	Distance	Delivers to
ZIP code 73734	7.1 mi	Dover, OK
ZIP code 73720	7.6 mi	Bison, OK
ZIP code 73773	13 mi	Waukomis, OK
ZIP code 73756	15 mi	Loyal, OK
ZIP code 73750	16 mi	Kingfisher, OK
ZIP code 73735	16 mi	Drummond, OK
ZIP code 73733	16 mi	Douglas, OK
ZIP code 73056	16 mi	Marshall, OK

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 73742, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 73742. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.