ZIP Code 16689

16689 is one of Pennsylvania's ZIP codes, delivering to addresses in Waterfall, Fulton County.

City: Waterfall
County: Fulton County
State: Pennsylvania
Prefix: 166xx

Where this code sits

16689 is part of the 166xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Waterfall.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 16689 delivers to without sharing its boundary.

ZIP codes nearest 16689

The ZIP codes whose reference points sit closest to 16689.
ZIP code	Distance	Delivers to
ZIP code 16674	4.4 mi	Robertsdale, PA
ZIP code 16691	4.5 mi	Wells Tannery, PA
ZIP code 16694	4.8 mi	Wood, PA
ZIP code 17264	5.3 mi	Three Springs, PA
ZIP code 17229	6.3 mi	Hustontown, PA
ZIP code 16621	6.6 mi	Broad Top, PA
ZIP code 17253	6.6 mi	Saltillo, PA
ZIP code 17223	6.7 mi	Fort Littleton, 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 16689, plotted from its record coordinates.

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

Scope ZIP code 16689. 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.