In which county is ZIP code 62239 located?

ZIP 62239 is listed under St. Clair, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 62239: Dupo, IL

ZIP: 62239

County: St. Clair

Coordinates: 38.51620, -90.21040

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Dupo, IL postal area 62239. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Dupo
ZIP Code	62239
County	St. Clair
State	IL
Latitude / Longitude	38.51620, -90.21040
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 62239 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 62239 is approximately 38.51620 (latitude) and -90.21040 (longitude). This location sits within St. Clair, contributing to regional planning across IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 62239 for mail delivery and general location reference in St. Clair, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Dupo within IL.

Frequently Asked Questions

What is the primary city for ZIP code 62239?

The primary city for this ZIP code is Dupo, located in IL.

In which county is 62239 located?

ZIP code 62239 is situated within St. Clair, IL.

What are the coordinates for 62239?

The approximate center point is 38.51620 (Latitude) and -90.21040 (Longitude).

Is ZIP code 62239 active?

This page lists ZIP 62239 as Listed based on the latest refresh date shown above.

Does ZIP 62239 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