In which county is ZIP code 53178 located?

ZIP 53178 is listed under Jefferson, WI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 53178: Sullivan, WI

ZIP: 53178

County: Jefferson

Coordinates: 42.99820, -88.60260

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Sullivan, WI postal area 53178. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Sullivan
ZIP Code	53178
County	Jefferson
State	WI
Latitude / Longitude	42.99820, -88.60260
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 53178 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 53178 is commonly represented around 42.99820, -88.60260. These coordinates help identify the general area within Jefferson, WI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 53178 for mail delivery and general location reference in Jefferson, WI.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Sullivan within WI.

Frequently Asked Questions

What is the primary city for ZIP code 53178?

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

In which county is 53178 located?

ZIP code 53178 is situated within Jefferson, WI.

What are the coordinates for 53178?

The approximate center point is 42.99820 (Latitude) and -88.60260 (Longitude).

Is ZIP code 53178 active?

This page lists ZIP 53178 as Listed based on the latest refresh date shown above.

Does ZIP 53178 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