ZIP Code 18034

18034 is one of Pennsylvania's ZIP codes, delivering to addresses in Center Valley, Lehigh County.

City: Center Valley
County: Lehigh County
State: Pennsylvania
Prefix: 180xx

Where this code sits

18034 is part of the 180xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Center Valley.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18034 delivers to without sharing its boundary.

ZIP codes nearest 18034

The ZIP codes whose reference points sit closest to 18034.
ZIP code	Distance	Delivers to
ZIP code 18060	2.4 mi	Limeport, PA
ZIP code 18036	2.9 mi	Coopersburg, PA
ZIP code 18098	3.8 mi	Emmaus, PA
ZIP code 18099	3.8 mi	Emmaus, PA
ZIP code 18103	4.0 mi	Allentown, PA
ZIP code 18049	4.1 mi	Emmaus, PA
ZIP code 18981	4.1 mi	Zionhill, PA
ZIP code 18015	4.8 mi	Bethlehem, 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 18034, plotted from its record coordinates.

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

Scope ZIP code 18034. 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.