ZIP Code 18011

18011 is one of Pennsylvania's ZIP codes, delivering to addresses in Alburtis, Lehigh County.

City: Alburtis
County: Lehigh County
State: Pennsylvania
Prefix: 180xx

Where this code sits

18011 is part of the 180xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Alburtis.

Alburtis Pennsylvania ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 18011 delivers to without sharing its boundary.

ZIP codes nearest 18011

The ZIP codes whose reference points sit closest to 18011.
ZIP code	Distance	Delivers to
ZIP code 18062	2.1 mi	Macungie, PA
ZIP code 18087	2.4 mi	Trexlertown, PA
ZIP code 18046	3.2 mi	East Texas, PA
ZIP code 18031	3.8 mi	Breinigsville, PA
ZIP code 19539	4.6 mi	Mertztown, PA
ZIP code 18106	4.7 mi	Allentown, PA
ZIP code 18068	4.8 mi	Old Zionsville, PA
ZIP code 19538	4.9 mi	Maxatawny, 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 18011, plotted from its record coordinates.

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

Scope ZIP code 18011. 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.