In which county is ZIP code 61531 located?

ZIP 61531 is listed under Fulton, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61531: Farmington, IL

ZIP: 61531

County: Fulton

Coordinates: 40.68320, -90.03500

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61531 in Farmington, IL. We include verified county details for Fulton plus key geographic references used for mapping and logistics.

Primary City	Farmington
ZIP Code	61531
County	Fulton
State	IL
Latitude / Longitude	40.68320, -90.03500
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 61531 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 61531 is approximately 40.68320 (latitude) and -90.03500 (longitude). This location sits within Fulton, contributing to regional planning across IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61531 for mail delivery and general location reference in Fulton, IL.

Some addresses near Farmington may share this ZIP due to delivery routing and local service areas.

Related ZIP Codes (Nearby)

Explore other postal codes near Farmington within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61531?

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

In which county is 61531 located?

ZIP code 61531 is situated within Fulton, IL.

What are the coordinates for 61531?

The approximate center point is 40.68320 (Latitude) and -90.03500 (Longitude).

Is ZIP code 61531 active?

This page lists ZIP 61531 as Listed based on the latest refresh date shown above.

Does ZIP 61531 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