ZIP Code 16405

16405 is one of Pennsylvania's ZIP codes, delivering to addresses in Columbus, Warren County.

City: Columbus
County: Warren County
State: Pennsylvania
Prefix: 164xx

Where this code sits

16405 is part of the 164xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Columbus.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16405 delivers to without sharing its boundary.

ZIP codes nearest 16405

The ZIP codes whose reference points sit closest to 16405.
ZIP code	Distance	Delivers to
ZIP code 16407	4.4 mi	Corry, PA
ZIP code 16402	6.1 mi	Bear Lake, PA
ZIP code 16436	6.5 mi	Spring Creek, PA
ZIP code 14758	8.2 mi	Niobe, NY
ZIP code 16413	9.1 mi	Elgin, PA
ZIP code 14767	9.5 mi	Panama, NY
ZIP code 14724	9.5 mi	Clymer, NY
ZIP code 16416	11 mi	Garland, 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 16405, plotted from its record coordinates.

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

Scope ZIP code 16405. 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.