ZIP Code 16677

16677 is one of Pennsylvania's ZIP codes, delivering to addresses in Sandy Ridge, Centre County.

City: Sandy Ridge
County: Centre County
State: Pennsylvania
Prefix: 166xx

Where this code sits

16677 is part of the 166xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sandy Ridge.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16677 delivers to without sharing its boundary.

ZIP codes nearest 16677

The ZIP codes whose reference points sit closest to 16677.
ZIP code	Distance	Delivers to
ZIP code 16666	4.5 mi	Osceola Mills, PA
ZIP code 16866	5.1 mi	Philipsburg, PA
ZIP code 16698	5.9 mi	Houtzdale, PA
ZIP code 16620	6.2 mi	Brisbin, PA
ZIP code 16651	6.5 mi	Houtzdale, PA
ZIP code 16663	7.0 mi	Morann, PA
ZIP code 16840	7.8 mi	Hawk Run, PA
ZIP code 16870	8.4 mi	Port Matilda, 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 16677, plotted from its record coordinates.

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

Scope ZIP code 16677. 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.