In which county is ZIP code 54521 located?

ZIP 54521 is listed under Vilas, WI.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 54521: Eagle River, WI

ZIP: 54521

County: Vilas

Coordinates: 45.91610, -89.25310

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 54521 in Eagle River, WI. We include verified county details for Vilas plus key geographic references used for mapping and logistics.

Primary City	Eagle River
ZIP Code	54521
County	Vilas
State	WI
Latitude / Longitude	45.91610, -89.25310
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 54521 (not an exact boundary).

Geographic & Administrative Context

The geographic center of ZIP code 54521 is approximately 45.91610 (latitude) and -89.25310 (longitude). This location sits within Vilas, contributing to regional planning across WI.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 54521 for mail delivery and general location reference in Vilas, WI.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Eagle River within WI.

Frequently Asked Questions

What is the primary city for ZIP code 54521?

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

In which county is 54521 located?

ZIP code 54521 is situated within Vilas, WI.

What are the coordinates for 54521?

The approximate center point is 45.91610 (Latitude) and -89.25310 (Longitude).

Is ZIP code 54521 active?

This page lists ZIP 54521 as Listed based on the latest refresh date shown above.

Does ZIP 54521 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