ZIP Code 17742

17742 is one of Pennsylvania's ZIP codes, delivering to addresses in Lairdsville, Lycoming County.

City: Lairdsville
County: Lycoming County
State: Pennsylvania
Prefix: 177xx

Where this code sits

17742 is part of the 177xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Lairdsville.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 17742 delivers to without sharing its boundary.

ZIP codes nearest 17742

The ZIP codes whose reference points sit closest to 17742.
ZIP code	Distance	Delivers to
ZIP code 17774	4.5 mi	Unityville, PA
ZIP code 17737	5.8 mi	Hughesville, PA
ZIP code 17762	6.4 mi	Picture Rocks, PA
ZIP code 17758	7.4 mi	Muncy Valley, PA
ZIP code 17756	8.4 mi	Muncy, PA
ZIP code 17846	8.8 mi	Millville, PA
ZIP code 17772	11 mi	Turbotville, PA
ZIP code 17731	12 mi	Eagles Mere, 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 17742, plotted from its record coordinates.

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

Scope ZIP code 17742. 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.