How many people live in ?

Updated annually
In 2025, there were 7.15 million people living in Massachusetts. That makes Massachusetts the 16th-most populous state, home to 2.1% of people living in the US.

7.15M

population of Massachusetts (2025)

2.1%

Massachusetts share of the US population (2025)
The population of Massachusetts was about 2.6 times higher than it was in 1900. Between 2024 and 2025, the population of Massachusetts grew by about 15,500 people.

About 7.15 million people lived in Massachusetts in 2025. That's about 2.6 times more than in 1900.

Annual population estimates

What are Massachusetts's age demographics?

About 1.34 million Massachusetts residents were aged 65 and older in 2024. That represents 18.7% of the state’s population compared with 18% in the US overall.
Another 1.36 million Massachusetts residents, or 19% of the state’s population, were aged under 18. For comparison, children account for 21.6% of the US population.

A higher share of Massachusetts's population is 65 and older than the US overall.

Population share by age group (2024)

What are Massachusetts's racial and ethnic demographics?

A state’s population may have racial and ethnic differences compared with the US overall. These figures reflect how people identified their race alone (not in combination with other races), and separate Hispanic or Latino ethnicity, following Census Bureau reporting standards.
Non-Hispanic Asian residents make up 8.1% of Massachusetts' population, higher than the national share of 6.5%. Massachusetts also has a larger share of people identifying as non-Hispanic white (67.6%) than the US overall (57.5%).
In contrast, Massachusetts’s non-Hispanic Black or African American population accounted for 7.8%, below the 12.6% share nationwide. The Hispanic population makes up 14% of the state, compared with 20% nationally.

A higher share of Massachusetts's population is non-Hispanic white than the US overall.

Population share by race and ethnicity (2024)

What are Massachusetts's most populous counties?

In 2024, four out of 14 counties accounted for over half of Massachusetts' population:
  • Middlesex County, 1.67 million (23.4% of the population)
  • Worcester County, 881,200 (12.3%)
  • Essex County, 823,900 (11.5%)
  • Suffolk County, 793,100 (11.1%)

In 2024, Middlesex County was the most populous county in Massachusetts.

Population estimates

What are Massachusetts's most populous cities?

The largest city in Massachusetts is Boston with about 673,500 residents in 2024.

Cities and counties in Massachusetts ranked by population

Cities and counties in Massachusetts ranked by population
1.

Boston 

673,458
2.

Worcester 

211,286
3.

Springfield 

154,888
4.

Cambridge 

121,186
5.

Lowell 

120,418
6.

Brockton 

105,788
7.

Lynn 

103,489
8.

Quincy 

103,434
9.

New Bedford

101,318
10.

Fall River

94,689

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.