Arlington, Massachusetts

Arlington, Massachusetts
Town
Arlington Town Hall
Flag Coat of arms
Motto(s):  Libertatis Propugnatio Hereditas Avita (Latin) "The Defense of Liberty Is Our Ancestral Heritage"
Location in Massachusetts
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Coordinates: 42°24′55″N 71°09′25″W / 42.41528°N 71.15694°W / 42.41528; -71.15694
Country	United States
State	Massachusetts
County	Middlesex
Settled	1635
Incorporated	1807
Renamed	1867
Government
• Type	Representative town meeting
• Town Manager	Jim Feeney
• Select Board	Stephen W. DeCourcey Lenard Diggins Eric D. Helmuth (chair) John V. Hurd Diane M. Mahon
Area
• Total	5.495 sq mi (14.235 km2)
• Land	5.048 sq mi (13.077 km2)
• Water	0.447 sq mi (1.158 km2)
Elevation	46 ft (14 m)
Population  (2020)
• Total	46,308
• Density	9,173.53/sq mi (3,541.18/km2)
Time zone	UTC−5 (Eastern)
• Summer (DST)	UTC−4 (Eastern)
ZIP Codes	02474, 02476
Area code	339 / 781
FIPS code	25-01605
GNIS feature ID	0619393
Website	www.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.