ZIP Code 73720

73720 is one of Oklahoma's ZIP codes, delivering to addresses in Bison, Garfield County.

City: Bison
County: Garfield County
State: Oklahoma
Prefix: 737xx

Where this code sits

73720 is part of the 737xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Bison.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73720 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 73720

The ZIP codes whose reference points sit closest to 73720.
ZIP code	Distance	Delivers to
ZIP code 73773	5.8 mi	Waukomis, OK
ZIP code 73742	7.6 mi	Hennessey, OK
ZIP code 73705	9.9 mi	Enid, OK
ZIP code 73735	11 mi	Drummond, OK
ZIP code 73733	11 mi	Douglas, OK
ZIP code 73706	14 mi	Enid, OK
ZIP code 73702	14 mi	Enid, OK
ZIP code 73703	14 mi	Enid, 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 73720, plotted from its record coordinates.

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

Scope ZIP code 73720. 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.