ZIP Code 16221

16221 is one of Pennsylvania's ZIP codes, delivering to addresses in Curllsville, Clarion County.

City: Curllsville
County: Clarion County
State: Pennsylvania
Prefix: 162xx

Where this code sits

16221 is part of the 162xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Curllsville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16221 delivers to without sharing its boundary.

ZIP codes nearest 16221

The ZIP codes whose reference points sit closest to 16221.
ZIP code	Distance	Delivers to
ZIP code 16234	0.0 mi	Limestone, PA
ZIP code 16254	3.3 mi	Shippenville, PA
ZIP code 16232	3.7 mi	Knox, PA
ZIP code 16214	4.0 mi	Clarion, PA
ZIP code 16255	6.3 mi	Sligo, PA
ZIP code 16213	7.6 mi	Callensburg, PA
ZIP code 16258	7.6 mi	Strattanville, PA
ZIP code 16058	8.4 mi	Turkey City, 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 16221, plotted from its record coordinates.

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

Scope ZIP code 16221. 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.