In which county is ZIP code 61489 located?

ZIP 61489 is listed under Knox, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61489: Williamsfield, IL

ZIP: 61489

County: Knox

Coordinates: 40.92770, -90.02670

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61489 in Williamsfield, IL. We include verified county details for Knox plus key geographic references used for mapping and logistics.

Primary City	Williamsfield
ZIP Code	61489
County	Knox
State	IL
Latitude / Longitude	40.92770, -90.02670
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 61489 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 61489 are listed as 40.92770 / -90.02670, useful for GPS and service checks in and around Williamsfield, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61489 for mail delivery and general location reference in Knox, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Williamsfield within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61489?

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

In which county is 61489 located?

ZIP code 61489 is situated within Knox, IL.

What are the coordinates for 61489?

The approximate center point is 40.92770 (Latitude) and -90.02670 (Longitude).

Is ZIP code 61489 active?

This page lists ZIP 61489 as Listed based on the latest refresh date shown above.

Does ZIP 61489 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