ZIP Code 42445

42445 is one of Kentucky's ZIP codes, delivering to addresses in Princeton, Caldwell County.

City: Princeton
County: Caldwell County
State: Kentucky
Prefix: 424xx

Where this code sits

42445 is part of the 424xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Princeton.

Princeton Kentucky ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 42445 delivers to without sharing its boundary.

ZIP codes nearest 42445

The ZIP codes whose reference points sit closest to 42445.
ZIP code	Distance	Delivers to
ZIP code 42411	11 mi	Fredonia, KY
ZIP code 42038	11 mi	Eddyville, KY
ZIP code 42408	11 mi	Dawson Springs, KY
ZIP code 42215	16 mi	Cerulean, KY
ZIP code 42033	16 mi	Crayne, KY
ZIP code 42055	16 mi	Kuttawa, KY
ZIP code 42453	17 mi	Saint Charles, KY
ZIP code 42037	18 mi	Dycusburg, KY

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 42445, plotted from its record coordinates.

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

Scope ZIP code 42445. 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.