In which county is ZIP code 13421 located?

ZIP 13421 is listed under Madison, NY.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 13421: Oneida, NY

ZIP: 13421

County: Madison

Coordinates: 43.08620, -75.65080

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Get a reliable snapshot of the Oneida, NY postal area 13421. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Oneida
ZIP Code	13421
County	Madison
State	NY
Latitude / Longitude	43.08620, -75.65080
ZIP Type	Standard
Time Zone	Eastern Time (ET)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 13421 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 13421 is approximately 43.08620 (latitude) and -75.65080 (longitude). This location sits within Madison, contributing to regional planning across NY.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 13421 for mail delivery and general location reference in Madison, NY.

Some addresses near Oneida may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Oneida within NY.

Frequently Asked Questions

What is the primary city for ZIP code 13421?

The primary city for this ZIP code is Oneida, located in NY.

In which county is 13421 located?

ZIP code 13421 is situated within Madison, NY.

What are the coordinates for 13421?

The approximate center point is 43.08620 (Latitude) and -75.65080 (Longitude).

Is ZIP code 13421 active?

This page lists ZIP 13421 as Listed based on the latest refresh date shown above.

Does ZIP 13421 cover multiple areas?

Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.

Methodology & Data Notes

How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.

Page updated: 2026-01-08