ZIP Code 18831

18831 is one of Pennsylvania's ZIP codes, delivering to addresses in Milan, Bradford County.

City: Milan
County: Bradford County
State: Pennsylvania
Prefix: 188xx

Where this code sits

18831 is part of the 188xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Milan.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18831 delivers to without sharing its boundary.

ZIP codes nearest 18831

The ZIP codes whose reference points sit closest to 18831.
ZIP code	Distance	Delivers to
ZIP code 18810	4.3 mi	Athens, PA
ZIP code 18850	4.5 mi	Ulster, PA
ZIP code 18817	5.3 mi	East Smithfield, PA
ZIP code 18840	6.1 mi	Sayre, PA
ZIP code 14892	8.3 mi	Waverly, NY
ZIP code 18814	8.8 mi	Burlington, PA
ZIP code 18848	9.8 mi	Towanda, PA
ZIP code 14825	11 mi	Chemung, 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 18831, plotted from its record coordinates.

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

Scope ZIP code 18831. 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.