In which county is ZIP code 66543 located?

ZIP 66543 is listed under Osage, KS.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 66543: Vassar, KS

ZIP: 66543

County: Osage

Coordinates: 38.64190, -95.60120

ZIP Type: Standard

Time Zone: Central Time (CT)

Get a reliable snapshot of the Vassar, KS postal area 66543. This page summarizes county, coordinates, and local facts to help with services and location research.

Primary City	Vassar
ZIP Code	66543
County	Osage
State	KS
Latitude / Longitude	38.64190, -95.60120
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 66543 (not an exact boundary).

Geographic & Administrative Context

For mapping and verification, 66543 is commonly represented around 38.64190, -95.60120. These coordinates help identify the general area within Osage, KS.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 66543 for mail delivery and general location reference in Osage, KS.

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

Related ZIP Codes (Nearby)

Explore other postal codes near Vassar within KS.

Frequently Asked Questions

What is the primary city for ZIP code 66543?

The primary city for this ZIP code is Vassar, located in KS.

In which county is 66543 located?

ZIP code 66543 is situated within Osage, KS.

What are the coordinates for 66543?

The approximate center point is 38.64190 (Latitude) and -95.60120 (Longitude).

Is ZIP code 66543 active?

This page lists ZIP 66543 as Listed based on the latest refresh date shown above.

Does ZIP 66543 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