ZIP Code 13421

13421 is one of New York's ZIP codes, delivering to addresses in Oneida, Madison County.

City: Oneida
County: Madison County
State: New York
Prefix: 134xx

Where this code sits

13421 is part of the 134xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Oneida.

Oneida New York ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 13421 delivers to without sharing its boundary.

ZIP codes nearest 13421

The ZIP codes whose reference points sit closest to 13421.
ZIP code	Distance	Delivers to
ZIP code 13461	2.8 mi	Sherrill, NY
ZIP code 13163	2.9 mi	Wampsville, NY
ZIP code 13476	4.5 mi	Vernon, NY
ZIP code 13054	5.1 mi	Durhamville, NY
ZIP code 13043	5.5 mi	Clockville, NY
ZIP code 13032	5.5 mi	Canastota, NY
ZIP code 13478	5.8 mi	Verona, NY
ZIP code 13477	7.2 mi	Vernon 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 13421, plotted from its record coordinates.

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

Scope ZIP code 13421. 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.