In which county is ZIP code 66429 located?

ZIP 66429 is listed under Jefferson, KS.

When was this page updated?

This page was updated on 2026-01-08.

ZIP Code 66429: Grantville, KS

ZIP: 66429

County: Jefferson

Coordinates: 39.09720, -95.53970

ZIP Type: Standard

Time Zone: Central Time (CT)

Explore detailed information for ZIP code 66429 in Grantville, KS. We include verified county details for Jefferson plus key geographic references used for mapping and logistics.

Primary City	Grantville
ZIP Code	66429
County	Jefferson
State	KS
Latitude / Longitude	39.09720, -95.53970
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 66429 (not an exact boundary).

Geographic & Administrative Context

Coordinates for 66429 are listed as 39.09720 / -95.53970, useful for GPS and service checks in and around Grantville, KS.

Local Coverage Notes

ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 66429 for mail delivery and general location reference in Jefferson, KS.

This ZIP may extend beyond the city core into nearby communities within Jefferson.

Related ZIP Codes (Nearby)

Explore other postal codes near Grantville within KS.

Frequently Asked Questions

What is the primary city for ZIP code 66429?

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

In which county is 66429 located?

ZIP code 66429 is situated within Jefferson, KS.

What are the coordinates for 66429?

The approximate center point is 39.09720 (Latitude) and -95.53970 (Longitude).

Is ZIP code 66429 active?

This page lists ZIP 66429 as Listed based on the latest refresh date shown above.

Does ZIP 66429 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