ZIP Code 02150
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.
From Wikipedia — text licensed CC BY-SA 4.0.
Area Profile
US Census (ACS 5-year · Gazetteer)
39,444
population
$72,122
median household income
17,816
people / sq mi
$476,500
median home value
$1,861
median gross rent
34.5
median age
14,162
housing units
13,522
households
2.2
land area (sq mi)
Key places in 02150
- Bellingham-Cary House museum
- Bellingham Square Historic District historic
- Downtown Chelsea Residential Historic District historic
Points of interest
- grocery
- coffee
- gas
- pharmacy
- fast_food
- bank
- gym
Brands
- Dunkin' (5)
- McDonald's (3)
- Starbucks (2)
- Burger King (1)
- Citizens Bank (1)
- Five Guys (1)
- Market Basket (1)
- Planet Fitness (1)
- Santander (1)
- Walgreens (1)