ZIP Code 01812

01812 is one of Massachusetts's ZIP codes, delivering to addresses in Andover, Essex County.

City: Andover
County: Essex County
State: Massachusetts
Prefix: 018xx

Where this code sits

01812 is part of the 018xx range, the group of codes handled by one mail processing centre. Andover is served by 5 ZIP codes in total.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01812 delivers to without sharing its boundary.

ZIP codes nearest 01812

The ZIP codes whose reference points sit closest to 01812.
ZIP code	Distance	Delivers to
ZIP code 05501	0.0 mi	Andover, MA
ZIP code 05544	0.0 mi	Andover, MA
ZIP code 01810	1.4 mi	Andover, MA
ZIP code 01899	2.5 mi	Andover, MA
ZIP code 01843	3.3 mi	Lawrence, MA
ZIP code 01876	3.7 mi	Tewksbury, MA
ZIP code 01842	4.3 mi	Lawrence, MA
ZIP code 01840	4.3 mi	Lawrence, MA

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 01812, plotted from its record coordinates.

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

Scope ZIP code 01812. 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.