ZIP Code 73770

73770 is one of Oklahoma's ZIP codes, delivering to addresses in Southard, Blaine County.

City: Southard
County: Blaine County
State: Oklahoma
Prefix: 737xx

Where this code sits

73770 is part of the 737xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Southard.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73770 delivers to without sharing its boundary.

580 Area code 580

ZIP codes nearest 73770

The ZIP codes whose reference points sit closest to 73770.
ZIP code	Distance	Delivers to
ZIP code 73724	1.6 mi	Canton, OK
ZIP code 73755	4.9 mi	Longdale, OK
ZIP code 73658	11 mi	Oakwood, OK
ZIP code 73763	15 mi	Okeene, OK
ZIP code 73744	16 mi	Hitchcock, OK
ZIP code 73737	16 mi	Fairview, OK
ZIP code 73646	17 mi	Fay, OK
ZIP code 73772	17 mi	Watonga, 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 73770, plotted from its record coordinates.

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

Scope ZIP code 73770. 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.