In which county is ZIP code 61378 located?

ZIP 61378 is listed under Lee, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61378: West Brooklyn, IL

ZIP: 61378

County: Lee

Coordinates: 41.72920, -89.19090

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the West Brooklyn, IL postal area 61378. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	West Brooklyn
ZIP Code	61378
County	Lee
State	IL
Latitude / Longitude	41.72920, -89.19090
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 61378 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 61378 are listed as 41.72920 / -89.19090, useful for GPS and service checks in and around West Brooklyn, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61378 for mail delivery and general location reference in Lee, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near West Brooklyn within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61378?

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

In which county is 61378 located?

ZIP code 61378 is situated within Lee, IL.

What are the coordinates for 61378?

The approximate center point is 41.72920 (Latitude) and -89.19090 (Longitude).

Is ZIP code 61378 active?

This page lists ZIP 61378 as Listed based on the latest refresh date shown above.

Does ZIP 61378 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