In which county is ZIP code 61102 located?

ZIP 61102 is listed under Winnebago, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61102: Rockford, IL

ZIP: 61102

County: Winnebago

Coordinates: 42.25470, -89.12470

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Rockford, IL postal area 61102. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Rockford
ZIP Code	61102
County	Winnebago
State	IL
Latitude / Longitude	42.25470, -89.12470
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 61102 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 61102 is approximately 42.25470 (latitude) and -89.12470 (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 61102 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 61102?

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

In which county is 61102 located?

ZIP code 61102 is situated within Winnebago, IL.

What are the coordinates for 61102?

The approximate center point is 42.25470 (Latitude) and -89.12470 (Longitude).

Is ZIP code 61102 active?

This page lists ZIP 61102 as Listed based on the latest refresh date shown above.

Does ZIP 61102 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