ZIP Code 85373

85373 is one of Arizona's ZIP codes, delivering to addresses in Sun City, Maricopa County.

City: Sun City
County: Maricopa County
State: Arizona
Prefix: 853xx

Where this code sits

85373 is part of the 853xx range, the group of codes handled by one mail processing centre. Sun City is served by 3 ZIP codes in total.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 85373 delivers to without sharing its boundary.

ZIP codes nearest 85373

The ZIP codes whose reference points sit closest to 85373.
ZIP code	Distance	Delivers to
ZIP code 85376	1.2 mi	Sun City West, AZ
ZIP code 85378	2.1 mi	Surprise, AZ
ZIP code 85374	2.1 mi	Surprise, AZ
ZIP code 85375	3.2 mi	Sun City West, AZ
ZIP code 85335	3.5 mi	El Mirage, AZ
ZIP code 85351	4.4 mi	Sun City, AZ
ZIP code 85363	4.8 mi	Youngtown, AZ
ZIP code 85379	4.9 mi	Surprise, AZ

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 85373, plotted from its record coordinates.

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

Scope ZIP code 85373. 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.