Chelsea
City in Suffolk County, Massachusetts
Chelsea is a city in Suffolk County, Massachusetts, with 40,787 residents (2020 Census). It sits at 10 ft (3 m) above sea level. The nearest town is Everett, 1.3 miles NW.
- 40,787residents (2020 Census)
- 10 ftelevation · 3 m
- 2.2 sq miland area · 5.7 km²
- 18,385 / sq mipopulation density
- 02150main ZIP code (2 in total)
About Chelsea
Chelsea is a city in Suffolk County, Massachusetts, United States. It is located along the Mystic River and connected to Boston by the Tobin Bridge. As of 2026, Chelsea has a population of 40,245 and a total area of 2.2 square miles (5.7 km2). It is the smallest city in Massachusetts by land area, and the third-most-densely populated.
Text: Wikipedia · CC BY-SA 4.0
Chelsea weather: 7-day forecast
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Source: National Weather Service (NOAA).
Live webcams in Chelsea
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Living in Chelsea
- Median household income
- $72,179
- Median home value
- $493,500
- Median rent
- $1,956/mo
- Median age
- 34.4
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Map of Chelsea
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Chelsea Street View
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Open in Google Maps ›Chelsea, MA population
Chelsea had 40,787 residents in the 2020 Census.
| 2020 Census | 40,787 |
|---|---|
| Density | 18,385 per sq mi (7,098 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Chelsea at a glance
| State | Massachusetts (MA) |
|---|---|
| County | Suffolk County |
| Type | City |
| Population | 40,787 (2020) |
| Land area | 2.22 sq mi (5.7 km²) |
| Water area | 0.25 sq mi (0.64 km²) |
| Elevation | 10 ft (3 m) |
| Coordinates | 42.3968° N, 71.0313° W |
| ZIP codes | 02150, 02149 |
| Official website | chelseama.gov |
| Census code (GEOID) | 2513205 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Chelsea
- Everett1.3 mi NW
- Revere2.6 mi NE
- Malden2.7 mi NW
- Winthrop Town3.2 mi E
- Somerville3.6 mi W
- Melrose4.3 mi N
- Medford4.4 mi NW
- Boston4.5 mi S
- Cambridge4.7 mi W
- Saugus5.0 mi N
- Stoneham6.3 mi NW
- Nahant6.4 mi E
Straight-line distance between town centers.
Frequently asked questions about Chelsea
What county is Chelsea in?
Chelsea is in Suffolk County, Massachusetts.
What is the population of Chelsea, MA?
40,787 people lived in Chelsea at the 2020 Census.
What is the ZIP code of Chelsea, MA?
The main ZIP code is 02150. Other ZIP codes: 02149.
What is the elevation of Chelsea?
10 feet (3 m) above sea level.
What towns are near Chelsea?
Everett (1.3 mi), Revere (2.6 mi), Malden (2.7 mi), Winthrop Town (3.2 mi), Somerville (3.6 mi).
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