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Chelsea | |
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![]() The Tobin Bridge, linking Chelsea and Boston | |
![]() Location in Suffolk County and the state of Massachusetts | |
Coordinates: 42°23′30″N 71°02′00″W / 42.39167°N 71.03333°W | |
Country | United States |
State | Massachusetts |
County | Suffolk |
Settled | 1624 |
Incorporated (town) | 1739 |
Incorporated (city) | 1857 |
Government | |
• Type | Council–manager |
• City manager | Fidel Maltez |
Area | |
• Total | 2.47 sq mi (6.39 km2) |
• Land | 2.22 sq mi (5.75 km2) |
• Water | 0.25 sq mi (0.64 km2) |
Elevation | 10 ft (3 m) |
Population (2020) | |
• Total | 40,787 |
• Density | 18,380.80/sq mi (7,097.87/km2) |
Time zone | UTC−5 (Eastern) |
• Summer (DST) | UTC−4 (Eastern) |
ZIP Code | 02150 |
Area code | 617/857 |
FIPS code | 25-13205 |
GNIS feature ID | 0612723 |
Website | www.chelseama.gov |
Chelsea is a city in Suffolk County, Massachusetts, United States, directly across the Mystic River from Boston. The 2020 census reported Chelsea as having a population of 40,787, thereby making it the second most densely populated city in Massachusetts, behind Somerville.[2] With a total area of 2.46 square miles (6.4 km2),[3] Chelsea is the smallest city in Massachusetts in terms of total area.[4] It is the city with the second-highest percentage of Latino residents in Massachusetts, behind Lawrence.