In which county is ZIP code 53551 located?

ZIP 53551 is listed under Jefferson, WI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 53551: Lake Mills, WI

ZIP: 53551

County: Jefferson

Coordinates: 43.08160, -88.91330

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Lake Mills, WI postal area 53551. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Lake Mills
ZIP Code	53551
County	Jefferson
State	WI
Latitude / Longitude	43.08160, -88.91330
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 53551 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 53551 is approximately 43.08160 (latitude) and -88.91330 (longitude). This location sits within Jefferson, contributing to regional planning across WI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 53551 for mail delivery and general location reference in Jefferson, WI.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Lake Mills within WI.

Frequently Asked Questions

What is the primary city for ZIP code 53551?

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

In which county is 53551 located?

ZIP code 53551 is situated within Jefferson, WI.

What are the coordinates for 53551?

The approximate center point is 43.08160 (Latitude) and -88.91330 (Longitude).

Is ZIP code 53551 active?

This page lists ZIP 53551 as Listed based on the latest refresh date shown above.

Does ZIP 53551 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