ZIP Code 73078

73078 is one of Oklahoma's ZIP codes, delivering to addresses in Piedmont, Canadian County.

City: Piedmont
County: Canadian County
State: Oklahoma
Prefix: 730xx

Where this code sits

73078 is part of the 730xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Piedmont.

Piedmont Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73078 delivers to without sharing its boundary.

ZIP codes nearest 73078

The ZIP codes whose reference points sit closest to 73078.
ZIP code	Distance	Delivers to
ZIP code 73142	8.2 mi	Oklahoma City, OK
ZIP code 73162	8.4 mi	Oklahoma City, OK
ZIP code 73016	9.7 mi	Cashion, OK
ZIP code 73132	9.7 mi	Oklahoma City, OK
ZIP code 73134	11 mi	Oklahoma City, OK
ZIP code 73120	12 mi	Oklahoma City, OK
ZIP code 73762	12 mi	Okarche, OK
ZIP code 73099	12 mi	Yukon, 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 73078, plotted from its record coordinates.

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

Scope ZIP code 73078. 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.