In which county is ZIP code 61105 located?

ZIP 61105 is listed under Winnebago, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61105: Rockford, IL

ZIP: 61105

County: Winnebago

Coordinates: 42.27110, -89.09400

ZIP Type: Standard

Time Zone: Central Time (CT)

This profile provides an in-depth look at ZIP code 61105, serving Rockford in IL. It lies in Winnebago and supports delivery, planning, and address verification.

Primary City	Rockford
ZIP Code	61105
County	Winnebago
State	IL
Latitude / Longitude	42.27110, -89.09400
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 61105 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 61105 are listed as 42.27110 / -89.09400, useful for GPS and service checks in and around Rockford, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61105 for mail delivery and general location reference in Winnebago, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Rockford within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61105?

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

In which county is 61105 located?

ZIP code 61105 is situated within Winnebago, IL.

What are the coordinates for 61105?

The approximate center point is 42.27110 (Latitude) and -89.09400 (Longitude).

Is ZIP code 61105 active?

This page lists ZIP 61105 as Listed based on the latest refresh date shown above.

Does ZIP 61105 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