ZIP Code 16438

16438 is one of Pennsylvania's ZIP codes, delivering to addresses in Union City, Erie County.

City: Union City
County: Erie County
State: Pennsylvania
Prefix: 164xx

Where this code sits

16438 is part of the 164xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Union City.

Union City Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16438 delivers to without sharing its boundary.

ZIP codes nearest 16438

The ZIP codes whose reference points sit closest to 16438.
ZIP code	Distance	Delivers to
ZIP code 16413	5.3 mi	Elgin, PA
ZIP code 16427	6.5 mi	Mill Village, PA
ZIP code 16432	8.3 mi	Riceville, PA
ZIP code 16441	9.2 mi	Waterford, PA
ZIP code 16407	9.9 mi	Corry, PA
ZIP code 16442	10 mi	Wattsburg, PA
ZIP code 16434	11 mi	Spartansburg, PA
ZIP code 16404	12 mi	Centerville, PA

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 16438, plotted from its record coordinates.

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

Scope ZIP code 16438. 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.