ZIP Code 73065

73065 is one of Oklahoma's ZIP codes, delivering to addresses in Newcastle, McClain County.

City: Newcastle
County: McClain County
State: Oklahoma
Prefix: 730xx

Where this code sits

73065 is part of the 730xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Newcastle.

Newcastle Oklahoma ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 73065 delivers to without sharing its boundary.

ZIP codes nearest 73065

The ZIP codes whose reference points sit closest to 73065.
ZIP code	Distance	Delivers to
ZIP code 73173	6.7 mi	Oklahoma City, OK
ZIP code 73170	6.8 mi	Oklahoma City, OK
ZIP code 73089	7.1 mi	Tuttle, OK
ZIP code 73072	8.4 mi	Norman, OK
ZIP code 73010	8.8 mi	Blanchard, OK
ZIP code 73069	9.4 mi	Norman, OK
ZIP code 73169	10 mi	Oklahoma City, OK
ZIP code 73160	10 mi	Oklahoma City, 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 73065, plotted from its record coordinates.

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

Scope ZIP code 73065. 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.