In which county is ZIP code 61439 located?

ZIP 61439 is listed under Knox, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61439: Henderson, IL

ZIP: 61439

County: Knox

Coordinates: 41.02760, -90.35750

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61439 in Henderson, IL. We include verified county details for Knox plus key geographic references used for mapping and logistics.

Primary City	Henderson
ZIP Code	61439
County	Knox
State	IL
Latitude / Longitude	41.02760, -90.35750
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 61439 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 61439 are listed as 41.02760 / -90.35750, useful for GPS and service checks in and around Henderson, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61439 for mail delivery and general location reference in Knox, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Henderson within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61439?

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

In which county is 61439 located?

ZIP code 61439 is situated within Knox, IL.

What are the coordinates for 61439?

The approximate center point is 41.02760 (Latitude) and -90.35750 (Longitude).

Is ZIP code 61439 active?

This page lists ZIP 61439 as Listed based on the latest refresh date shown above.

Does ZIP 61439 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