In which county is ZIP code 62203 located?

ZIP 62203 is listed under St. Clair, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 62203: East Saint Louis, IL

ZIP: 62203

County: St. Clair

Coordinates: 38.59920, -90.07440

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 62203, serving East Saint Louis in IL. It lies in St. Clair and supports delivery, planning, and address verification.

Primary City	East Saint Louis
ZIP Code	62203
County	St. Clair
State	IL
Latitude / Longitude	38.59920, -90.07440
ZIP Type	Standard
Time Zone	Central Time (CT)
Data Updated	2026-01-08

Maps & Useful Links

Open in Maps: Google Maps · OpenStreetMap

These links show the approximate center point for ZIP 62203 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 62203 are listed as 38.59920 / -90.07440, useful for GPS and service checks in and around East Saint Louis, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 62203 for mail delivery and general location reference in St. Clair, IL.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with East Saint Louis.

Related ZIP Codes (Nearby)

Explore other postal codes near East Saint Louis within IL.

Frequently Asked Questions

What is the primary city for ZIP code 62203?

The primary city for this ZIP code is East Saint Louis, located in IL.

In which county is 62203 located?

ZIP code 62203 is situated within St. Clair, IL.

What are the coordinates for 62203?

The approximate center point is 38.59920 (Latitude) and -90.07440 (Longitude).

Is ZIP code 62203 active?

This page lists ZIP 62203 as Listed based on the latest refresh date shown above.

Does ZIP 62203 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