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
CountySeal of Suffolk County, Massachusetts.png Suffolk
Region New England
Historic countries England
 Great Britain
Historic coloniesMassachusetts 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 forBoston, Lincolnshire
Government
 • TypeStrong mayor / Council
 • MayorMarty Walsh (D)
 • CouncilBoston City Council
Area
 • City89.63 sq mi (232.14 km2)
 • Land48.42 sq mi (125.41 km2)
 • Water41.21 sq mi (106.73 km2)
 • Urban
1,770 sq mi (4,600 km2)
 • Metro
4,500 sq mi (11,700 km2)
 • CSA10,600 sq mi (27,600 km2)
Elevation
141 ft (43 m)
Population 
 • City617,594
 • Estimate 
(2017)[3]
685,094
 • Rank21st, U.S. as of 2017incorporated places estimate
 • Density14,149/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 zoneUTC−5 (EST)
 • Summer (DST)UTC−4 (EDT)
ZIP Codes
53 ZIP codes[7][show]
Area codes617 and 857
FIPS code25-07000
GNIS feature ID0617565
Primary AirportLogan International Airport
InterstatesI-90.svg I-93.svg I-95.svg I-495.svg
Commuter RailMBTA Commuter Rail
Rapid TransitMBTA Subway
WebsiteBoston.gov