In which county is ZIP code 54205 located?

ZIP 54205 is listed under Kewaunee, WI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 54205: Casco, WI

ZIP: 54205

County: Kewaunee

Coordinates: 44.58330, -87.62310

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Casco, WI postal area 54205. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Casco
ZIP Code	54205
County	Kewaunee
State	WI
Latitude / Longitude	44.58330, -87.62310
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 54205 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 54205 is commonly represented around 44.58330, -87.62310. These coordinates help identify the general area within Kewaunee, WI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 54205 for mail delivery and general location reference in Kewaunee, WI.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Casco within WI.

Frequently Asked Questions

What is the primary city for ZIP code 54205?

The primary city for this ZIP code is Casco, located in WI.

In which county is 54205 located?

ZIP code 54205 is situated within Kewaunee, WI.

What are the coordinates for 54205?

The approximate center point is 44.58330 (Latitude) and -87.62310 (Longitude).

Is ZIP code 54205 active?

This page lists ZIP 54205 as Listed based on the latest refresh date shown above.

Does ZIP 54205 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