ZIP Code 18851

18851 is one of Pennsylvania's ZIP codes, delivering to addresses in Warren Center, Bradford County.

City: Warren Center
County: Bradford County
State: Pennsylvania
Prefix: 188xx

Where this code sits

18851 is part of the 188xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Warren Center.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18851 delivers to without sharing its boundary.

ZIP codes nearest 18851

The ZIP codes whose reference points sit closest to 18851.
ZIP code	Distance	Delivers to
ZIP code 18830	4.8 mi	Little Meadows, PA
ZIP code 18829	6.7 mi	Le Raysville, PA
ZIP code 18837	7.5 mi	Rome, PA
ZIP code 13732	8.3 mi	Apalachin, NY
ZIP code 18818	8.9 mi	Friendsville, PA
ZIP code 13812	10 mi	Nichols, NY
ZIP code 13737	11 mi	Bible School Park, NY
ZIP code 13845	11 mi	Tioga Center, NY

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 18851, plotted from its record coordinates.

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

Scope ZIP code 18851. 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.