Map of Chelmsford, Massachusetts, United States

Chelmsford is a city in Massachusetts, United States, with a population of about 33,925. It lies at 42.5998°N, 71.3673°W, about 75 m above sea level. Chelmsford is about 630 km (392 mi) northeast of Washington, D.C., the capital. The nearest city on our map is Lowell, 6 km to the northeast.

Chelmsford at a glance

Where is Chelmsford?

• Located in the Northern and Western hemispheres.
• Daylight ranges from about 9 h 03 min on the shortest day to 15 h 19 min on the longest day (around 21 December and 21 June).

Cities near Chelmsford

• Lowell — 6 km northeast
• Billerica — 9 km southeast
• Methuen — 20 km northeast
• Nashua — 20 km northwest
• Lawrence — 21 km northeast
• Woburn — 22 km southeast
• Arlington — 27 km southeast
• Waltham — 27 km southeast
• Haverhill — 31 km northeast
• Malden — 31 km southeast

Largest cities in Massachusetts

• Boston — 653,833
• Worcester — 206,518
• Springfield — 154,341
• Lowell — 110,699
• Cambridge — 110,402
• New Bedford — 101,079
• Brockton — 95,314
• Fall River — 94,000
• Quincy — 93,618
• Lynn — 92,457

Largest cities in United States

• New York City — 8,804,190
• Los Angeles — 3,820,914
• Brooklyn — 2,736,074
• Chicago — 2,664,452
• Queens — 2,316,841
• Houston — 2,314,157
• Phoenix — 1,650,070
• Philadelphia — 1,573,916
• San Antonio — 1,526,656
• Manhattan — 1,487,536

Map of United States and all its cities →

Other places named Chelmsford

• Chelmsford — England, United Kingdom

Sources: place names, coordinates, populations and time zones from GeoNames (CC BY 4.0, data retrieved October 2026). Population figures are the latest values recorded in GeoNames; depending on the country they refer to the city proper, a municipality or a wider urban area, so they can differ from census or metro-area figures. Map © OpenStreetMap contributors.