In which county is ZIP code 62423 located?

ZIP 62423 is listed under Clark, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 62423: Dennison, IL

ZIP: 62423

County: Clark

Coordinates: 39.44900, -87.58670

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Dennison, IL postal area 62423. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Dennison
ZIP Code	62423
County	Clark
State	IL
Latitude / Longitude	39.44900, -87.58670
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 62423 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 62423 are listed as 39.44900 / -87.58670, useful for GPS and service checks in and around Dennison, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 62423 for mail delivery and general location reference in Clark, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Dennison within IL.

Frequently Asked Questions

What is the primary city for ZIP code 62423?

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

In which county is 62423 located?

ZIP code 62423 is situated within Clark, IL.

What are the coordinates for 62423?

The approximate center point is 39.44900 (Latitude) and -87.58670 (Longitude).

Is ZIP code 62423 active?

This page lists ZIP 62423 as Listed based on the latest refresh date shown above.

Does ZIP 62423 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