Find the last 4 digits (ZIP+4) for an address in 01824

ZIP 01824, Chelmsford, MA is filled in. Just type the street address.

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ZIP Code 01824 – Chelmsford, MA

Chelmsford, Massachusetts · Middlesex County · Eastern time

ZIP code01824
CityChelmsford
StateMassachusetts
CountyMiddlesex County
Population26,650
Time zoneEastern · local time
ZIP typeStandard (has a Census ZCTA area)
Land area18.06 sq mi
Center (lat, long)42.5908, -71.3552

Area codes in this area

781339

These are the area codes that most often serve ZIP 01824 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

01851 Lowell · 2.7 mi01862 North Billerica · 3.1 mi01863 North Chelmsford · 3.5 mi01853 Lowell · 3.5 mi01741 Carlisle · 3.7 mi01854 Lowell · 4.1 mi01852 Lowell · 4.2 mi01886 Westford · 4.3 mi

About ZIP 01824

ZIP code 01824 is assigned to Chelmsford, Massachusetts. It lies in Middlesex County. Its Census area covers about 18.06 square miles of land. The closest neighboring ZIP is 01851 (Lowell), about 2.7 miles away.

Every address in 01824 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources