ZIP code · North Chelmsford · Massachusetts · United States

ZIP code 01863 — North Chelmsford

ZIP code 01863 serves North Chelmsford, Massachusetts.

Postal code
01863
Single source Value from one source, not cross-checked.
City
North Chelmsford
County
Middlesex FIPS 25017
State
Massachusetts
Country
United States
Coordinates
42.6347, -71.3908 — precision precise (locality)
View on OpenStreetMap
Population
9,592 (ZCTA, ACS 5-year)
Population density
2,153 / sq mi
Land area
4.5 sq mi (11.5 km²) (ZCTA, ACS 5-year)
Median household income
$136,284
Per-capita income
$54,802
Median age
42.8
Households
3,628
Housing units
3,677
Median home value
$477,900
Median gross rent
$1,698 / month
Congressional district
MA-3 (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 (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 85°F), coldest Jan (avg low 16°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F343745597079858376625140
Avg low °F161724354555615952403022
Precip in3.63.24.34.13.84.43.94.03.95.03.94.5

NOAA 1991–2020 climate normals from the nearest station: LOWELL (1.4 mi) · NOAA NCEI

Places in ZIP 01863

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