In which county is ZIP code 61077 located?

ZIP 61077 is listed under Winnebago, IL.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 61077: Seward, IL

ZIP: 61077

County: Winnebago

Coordinates: 42.23680, -89.35800

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Seward, IL postal area 61077. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Seward
ZIP Code	61077
County	Winnebago
State	IL
Latitude / Longitude	42.23680, -89.35800
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 61077 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 61077 is commonly represented around 42.23680, -89.35800. These coordinates help identify the general area within Winnebago, IL.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 61077 for mail delivery and general location reference in Winnebago, IL.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Seward within IL.

Frequently Asked Questions

What is the primary city for ZIP code 61077?

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

In which county is 61077 located?

ZIP code 61077 is situated within Winnebago, IL.

What are the coordinates for 61077?

The approximate center point is 42.23680 (Latitude) and -89.35800 (Longitude).

Is ZIP code 61077 active?

This page lists ZIP 61077 as Listed based on the latest refresh date shown above.

Does ZIP 61077 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