ZIP Code 66078

66078 is one of Kansas's ZIP codes, delivering to addresses in Princeton, Franklin County.

City: Princeton
County: Franklin County
State: Kansas
Prefix: 660xx

Where this code sits

66078 is part of the 660xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Princeton.

Princeton Kansas ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 66078 delivers to without sharing its boundary.

785 Area code 785

ZIP codes nearest 66078

The ZIP codes whose reference points sit closest to 66078.
ZIP code	Distance	Delivers to
ZIP code 66080	5.5 mi	Richmond, KS
ZIP code 66095	7.9 mi	Williamsburg, KS
ZIP code 66067	8.9 mi	Ottawa, KS
ZIP code 66079	10 mi	Rantoul, KS
ZIP code 66042	11 mi	Lane, KS
ZIP code 66033	13 mi	Greeley, KS
ZIP code 66076	13 mi	Pomona, KS
ZIP code 66032	14 mi	Garnett, KS

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.

Each point is the reference point for 66078, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 66078. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.