In which county is ZIP code 62921 located?

ZIP 62921 is listed under Williamson, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 62921: Colp, IL

ZIP: 62921

County: Williamson

Coordinates: 37.80530, -89.08010

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 62921, serving Colp in IL. It lies in Williamson and supports delivery, planning, and address verification.

Primary City	Colp
ZIP Code	62921
County	Williamson
State	IL
Latitude / Longitude	37.80530, -89.08010
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 62921 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 62921 is commonly represented around 37.80530, -89.08010. These coordinates help identify the general area within Williamson, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 62921 for mail delivery and general location reference in Williamson, IL.

Coverage may include nearby neighborhoods and adjacent unincorporated areas commonly associated with Colp.

Related ZIP Codes (Nearby)

Explore other postal codes near Colp within IL.

Frequently Asked Questions

What is the primary city for ZIP code 62921?

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

In which county is 62921 located?

ZIP code 62921 is situated within Williamson, IL.

What are the coordinates for 62921?

The approximate center point is 37.80530 (Latitude) and -89.08010 (Longitude).

Is ZIP code 62921 active?

This page lists ZIP 62921 as Listed based on the latest refresh date shown above.

Does ZIP 62921 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