Arlington, Massachusetts

Arlington, Massachusetts
Arlington Town Hall
Motto: 
Libertatis Propugnatio Hereditas Avita (Latin)
"The Defense of Liberty Is Our Ancestral Heritage"
Location in Massachusetts
Arlington
Arlington
Arlington
Coordinates: 42°24′55″N 71°09′25″W / 42.41528°N 71.15694°W / 42.41528; -71.15694
CountryUnited States
StateMassachusetts
CountyMiddlesex
Settled1635
Incorporated1807
Renamed1867
Government
 • TypeRepresentative town meeting
 • Town ManagerJim Feeney
 • Select BoardStephen W. DeCourcey
Lenard Diggins
Eric D. Helmuth (chair)
John V. Hurd
Diane M. Mahon
Area
 • Total
5.496 sq mi (14.235 km2)
 • Land5.049 sq mi (13.077 km2)
 • Water0.447 sq mi (1.158 km2)
Elevation
46 ft (14 m)
Population
 (2020)
 • Total
46,308
 • Density9,171.6/sq mi (3,541.18/km2)
Time zoneUTC−5 (Eastern)
 • Summer (DST)UTC−4 (Eastern)
ZIP Codes
02474, 02476
Area code339 / 781
FIPS code25-01605
GNIS feature ID0619393
Websitewww.arlingtonma.gov

Arlington is a town in Middlesex County, Massachusetts, United States. The town is six miles (10 km) northwest of Boston, and its population was 46,308 at the 2020 census.