In which county is ZIP code 45503 located?

ZIP 45503 is listed under Clark, OH.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 45503: Springfield, OH

ZIP: 45503

County: Clark

Coordinates: 39.95280, -83.78040

ZIP Type: Standard

Time Zone: Eastern Time (ET)

Explore detailed information for ZIP code 45503 in Springfield, OH. We include verified county details for Clark plus key geographic references used for mapping and logistics.

Primary City	Springfield
ZIP Code	45503
County	Clark
State	OH
Latitude / Longitude	39.95280, -83.78040
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 45503 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 45503 are listed as 39.95280 / -83.78040, useful for GPS and service checks in and around Springfield, OH.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 45503 for mail delivery and general location reference in Clark, OH.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Springfield within OH.

Frequently Asked Questions

What is the primary city for ZIP code 45503?

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

In which county is 45503 located?

ZIP code 45503 is situated within Clark, OH.

What are the coordinates for 45503?

The approximate center point is 39.95280 (Latitude) and -83.78040 (Longitude).

Is ZIP code 45503 active?

This page lists ZIP 45503 as Listed based on the latest refresh date shown above.

Does ZIP 45503 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