ZIP Code 73743

73743 is one of Oklahoma's ZIP codes, delivering to addresses in Hillsdale, Garfield County.

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

Where this code sits

73743 is part of the 737xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hillsdale.

Hillsdale Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73743 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 73743

The ZIP codes whose reference points sit closest to 73743.
ZIP code	Distance	Delivers to
ZIP code 73727	5.6 mi	Carrier, OK
ZIP code 73753	8.2 mi	Kremlin, OK
ZIP code 73739	9.3 mi	Goltry, OK
ZIP code 73761	9.4 mi	Nash, OK
ZIP code 73703	12 mi	Enid, OK
ZIP code 73766	13 mi	Pond Creek, OK
ZIP code 73754	13 mi	Lahoma, OK
ZIP code 73702	13 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 73743, plotted from its record coordinates.

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

Scope ZIP code 73743. 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.