ZIP Code 01451

01451 is one of Massachusetts's ZIP codes, delivering to addresses in Harvard, Worcester County.

City: Harvard
County: Worcester County
State: Massachusetts
Prefix: 014xx

Where this code sits

01451 is part of the 014xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Harvard.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 01451 delivers to without sharing its boundary.

ZIP codes nearest 01451

The ZIP codes whose reference points sit closest to 01451.
ZIP code	Distance	Delivers to
ZIP code 01467	2.1 mi	Still River, MA
ZIP code 01719	3.0 mi	Boxborough, MA
ZIP code 01434	3.3 mi	Devens, MA
ZIP code 01432	4.2 mi	Ayer, MA
ZIP code 01740	4.6 mi	Bolton, MA
ZIP code 01460	5.3 mi	Littleton, MA
ZIP code 01775	5.6 mi	Stow, MA
ZIP code 01464	6.4 mi	Shirley, 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 01451, plotted from its record coordinates.

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

Scope ZIP code 01451. 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.