ZIP code · Boxford · Massachusetts · United States

ZIP code 01921 — Boxford

ZIP code 01921 serves Boxford, Massachusetts.

Postal code
01921
Single source Value from one source, not cross-checked.
City
Boxford
County
Essex FIPS 25009
State
Massachusetts
Country
United States
Coordinates
42.6797, -71.0114 — precision precise (locality)
View on OpenStreetMap
Population
8,229 (ZCTA, ACS 5-year)
Population density
349 / sq mi
Land area
23.6 sq mi (61.1 km²) (ZCTA, ACS 5-year)
Median household income
$190,526
Per-capita income
$90,836
Median age
49.5
Households
2,902
Housing units
2,961
Median home value
$874,900
Median gross rent
$736 / month
Congressional district
MA-6 (119th Congress)
USDA hardiness zone
6b (-5 to 0 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/New_York (UTC−5 / UTC−4 DST)
Area codes
978, 351, 508 (from the nearest rate centre)
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 83°F), coldest Jan (avg low 17°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F353846586978838173625141
Avg low °F171926364656626052413223
Precip in3.73.65.04.23.84.23.63.44.14.93.94.7

NOAA 1991–2020 climate normals from the nearest station: GROVELAND (4.9 mi) · NOAA NCEI

Places in ZIP 01921

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page