In which county is ZIP code 43903 located?

ZIP 43903 is listed under Jefferson, OH.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 43903: Amsterdam, OH

ZIP: 43903

County: Jefferson

Coordinates: 40.47310, -80.95960

ZIP Type: Standard

Time Zone: Eastern Time (ET)

This profile provides an in-depth look at ZIP code 43903, serving Amsterdam in OH. It lies in Jefferson and supports delivery, planning, and address verification.

Primary City	Amsterdam
ZIP Code	43903
County	Jefferson
State	OH
Latitude / Longitude	40.47310, -80.95960
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 43903 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 43903 is approximately 40.47310 (latitude) and -80.95960 (longitude). This location sits within Jefferson, contributing to regional planning across OH.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 43903 for mail delivery and general location reference in Jefferson, OH.

This ZIP may extend beyond the city core into nearby communities within Jefferson.

Related ZIP Codes (Nearby)

Explore other postal codes near Amsterdam within OH.

Frequently Asked Questions

What is the primary city for ZIP code 43903?

The primary city for this ZIP code is Amsterdam, located in OH.

In which county is 43903 located?

ZIP code 43903 is situated within Jefferson, OH.

What are the coordinates for 43903?

The approximate center point is 40.47310 (Latitude) and -80.95960 (Longitude).

Is ZIP code 43903 active?

This page lists ZIP 43903 as Listed based on the latest refresh date shown above.

Does ZIP 43903 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