In which county is ZIP code 61420 located?

ZIP 61420 is listed under McDonough, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61420: Blandinsville, IL

ZIP: 61420

County: McDonough

Coordinates: 40.55160, -90.85950

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61420 in Blandinsville, IL. We include verified county details for McDonough plus key geographic references used for mapping and logistics.

Primary City	Blandinsville
ZIP Code	61420
County	McDonough
State	IL
Latitude / Longitude	40.55160, -90.85950
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 61420 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 61420 is approximately 40.55160 (latitude) and -90.85950 (longitude). This location sits within McDonough, contributing to regional planning across IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61420 for mail delivery and general location reference in McDonough, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Blandinsville within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61420?

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

In which county is 61420 located?

ZIP code 61420 is situated within McDonough, IL.

What are the coordinates for 61420?

The approximate center point is 40.55160 (Latitude) and -90.85950 (Longitude).

Is ZIP code 61420 active?

This page lists ZIP 61420 as Listed based on the latest refresh date shown above.

Does ZIP 61420 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