In which county is ZIP code 61426 located?

ZIP 61426 is listed under Stark, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61426: Castleton, IL

ZIP: 61426

County: Stark

Coordinates: 41.11830, -89.70710

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61426 in Castleton, IL. We include verified county details for Stark plus key geographic references used for mapping and logistics.

Primary City	Castleton
ZIP Code	61426
County	Stark
State	IL
Latitude / Longitude	41.11830, -89.70710
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 61426 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 61426 are listed as 41.11830 / -89.70710, useful for GPS and service checks in and around Castleton, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61426 for mail delivery and general location reference in Stark, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Castleton within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61426?

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

In which county is 61426 located?

ZIP code 61426 is situated within Stark, IL.

What are the coordinates for 61426?

The approximate center point is 41.11830 (Latitude) and -89.70710 (Longitude).

Is ZIP code 61426 active?

This page lists ZIP 61426 as Listed based on the latest refresh date shown above.

Does ZIP 61426 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