ZIP Code 16648

16648 is one of Pennsylvania's ZIP codes, delivering to addresses in Hollidaysburg, Blair County.

City: Hollidaysburg
County: Blair County
State: Pennsylvania
Prefix: 166xx

Where this code sits

16648 is part of the 166xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hollidaysburg.

Hollidaysburg Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16648 delivers to without sharing its boundary.

ZIP codes nearest 16648

The ZIP codes whose reference points sit closest to 16648.
ZIP code	Distance	Delivers to
ZIP code 16635	3.8 mi	Duncansville, PA
ZIP code 16665	4.7 mi	Newry, PA
ZIP code 16602	4.7 mi	Altoona, PA
ZIP code 16603	4.9 mi	Altoona, PA
ZIP code 16601	6.1 mi	Altoona, PA
ZIP code 16693	6.4 mi	Williamsburg, PA
ZIP code 16673	7.8 mi	Roaring Spring, PA
ZIP code 16637	8.7 mi	East Freedom, 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 16648, plotted from its record coordinates.

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

Scope ZIP code 16648. 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.