ZIP Code 16666

16666 is one of Pennsylvania's ZIP codes, delivering to addresses in Osceola Mills, Clearfield County.

City: Osceola Mills
County: Clearfield County
State: Pennsylvania
Prefix: 166xx

Where this code sits

16666 is part of the 166xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Osceola Mills.

Osceola Mills Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16666 delivers to without sharing its boundary.

ZIP codes nearest 16666

The ZIP codes whose reference points sit closest to 16666.
ZIP code	Distance	Delivers to
ZIP code 16866	3.1 mi	Philipsburg, PA
ZIP code 16677	4.5 mi	Sandy Ridge, PA
ZIP code 16620	4.6 mi	Brisbin, PA
ZIP code 16698	5.1 mi	Houtzdale, PA
ZIP code 16840	5.1 mi	Hawk Run, PA
ZIP code 16651	5.3 mi	Houtzdale, PA
ZIP code 16878	5.7 mi	West Decatur, PA
ZIP code 16876	6.2 mi	Wallaceton, PA

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 16666, plotted from its record coordinates.

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

Scope ZIP code 16666. 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.