Boston, Massachusetts
City of Boston
Boston Financial District
Fenway Park
Massachusetts State House
Back Bay and the Charles River
Flag of Boston, Massachusetts
Flag
Official seal of Boston, Massachusetts
Seal
Nickname(s): 
Motto(s): 
Sicut patribus sit Deus nobis (Latin)
"As God was with our fathers, so may He be with us"
Interactive map outlining Boston
Boston is located in Massachusetts
Boston
Boston
Location within Massachusetts
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Coordinates: 42°21′29″N 71°03′49″W
Country  United States
State  Massachusetts
County Seal of Suffolk County, Massachusetts.png Suffolk
Region  New England
Historic countries  England
 Great Britain
Historic colonies Massachusetts Bay Colony in the Province of Massachusetts Bay
Settled (town)
September 7, 1630
(date of naming, Old Style)[a]
Incorporated (city) March 4, 1822
Named for Boston, Lincolnshire
Government
 • Type Strong mayor / Council
 • Mayor Marty Walsh (D)
 • Council Boston City Council
Area
 • City 89.63 sq mi (232.14 km2)
 • Land 48.42 sq mi (125.41 km2)
 • Water 41.21 sq mi (106.73 km2)
 • Urban
1,770 sq mi (4,600 km2)
 • Metro
4,500 sq mi (11,700 km2)
 • CSA 10,600 sq mi (27,600 km2)
Elevation
141 ft (43 m)
Population 
 • City 617,594
 • Estimate 
(2017)[3]
685,094
 • Rank 21st, U.S. as of 2017incorporated places estimate
 • Density 14,149/sq mi (5,463/km2)
 • Urban
4,180,000 (US: 10th)
 • Metro
4,628,910 (US: 10th)[1]
 • CSA
8,041,303 (US: 6th)
 • Demonym
Bostonian
Time zone UTC−5 (EST)
 • Summer (DST) UTC−4 (EDT)
ZIP Codes
53 ZIP codes[7][show]
Area codes 617 and 857
FIPS code 25-07000
GNIS feature ID 0617565
Primary Airport Logan International Airport
Interstates I-90.svg I-93.svg I-95.svg I-495.svg
Commuter Rail MBTA Commuter Rail
Rapid Transit MBTA Subway
Website Boston.gov