In which county is ZIP code 61109 located?

ZIP 61109 is listed under Winnebago, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61109: Rockford, IL

ZIP: 61109

County: Winnebago

Coordinates: 42.21660, -89.05120

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 61109 in Rockford, IL. We include verified county details for Winnebago plus key geographic references used for mapping and logistics.

Primary City	Rockford
ZIP Code	61109
County	Winnebago
State	IL
Latitude / Longitude	42.21660, -89.05120
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 61109 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 61109 is approximately 42.21660 (latitude) and -89.05120 (longitude). This location sits within Winnebago, contributing to regional planning across IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61109 for mail delivery and general location reference in Winnebago, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Rockford within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61109?

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

In which county is 61109 located?

ZIP code 61109 is situated within Winnebago, IL.

What are the coordinates for 61109?

The approximate center point is 42.21660 (Latitude) and -89.05120 (Longitude).

Is ZIP code 61109 active?

This page lists ZIP 61109 as Listed based on the latest refresh date shown above.

Does ZIP 61109 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