Share of the population by age and sex, five-year groups

Population of Massachusetts, 2010–2025 · click to pick a year
Estimates up to 2019 are built on the 2010 Census, those from 2020 on the 2020 Census. A line that steps up or down between 2019 and 2020 reflects this re-basing, not a sudden change in population.

Year

-5 -1   2021  +1 +5

6,996,721 people lived in Massachusetts on July 1, 2021: the 15th-largest population among the 50 states and the District of Columbia. The median age was 40.0 years (United States: 38.9); more residents are 65 or older (18.0%) than under 15 (15.7%): an ageing, top-heavy pyramid. There were 93.8 men for every 100 women. Since 2010 the population has grown by 6.6%. Source: U.S. Census Bureau, Population Estimates Program, Vintage 2025 estimates (resident population on July 1; public domain). Median age, shares, dependency ratios and rankings are calculated by PopulationPyramid.net from these estimates; the Census Bureau does not endorse this site.

Key indicators, 2021
Population
6,996,721
Rank by population
15th of 51
Median age
40.0
Men per 100 women
93.8
Under 15
15.7%
15–64
66.3%
65 and over
18.0%
Child dependency
23.7
Old-age dependency
27.2
Change since 2010
+6.6%
Dependency ratios count children under 15 or adults 65 and over per 100 residents aged 15 to 64.
Show the population by age group, 2021
AgeMenWomenTotalShare
0-4175,419167,668343,0874.9%
5-9185,335177,787363,1225.2%
10-14201,963191,833393,7965.6%
15-19225,572221,492447,0646.4%
20-24251,950254,403506,3537.2%
25-29246,153247,208493,3617.1%
30-34243,563252,387495,9507.1%
35-39222,679233,052455,7316.5%
40-44202,131215,142417,2736.0%
45-49193,327207,620400,9475.7%
50-54219,930237,135457,0656.5%
55-59235,712253,397489,1097.0%
60-64226,362246,763473,1256.8%
65-69189,578214,448404,0265.8%
70-74154,776183,215337,9914.8%
75-7998,747124,838223,5853.2%
80-8458,67583,310141,9852.0%
85+53,86799,284153,1512.2%
How Massachusetts compares with similar-sized states, 2021
RankStateResidentsRelative
12 Virginia 8,660,007
13 Washington 7,744,316
14 Arizona 7,274,022
15 Massachusetts 6,996,721
16 Tennessee 6,966,687
17 Indiana 6,814,223
18 Maryland 6,176,035
Frequently asked questions about Massachusetts's population
What is the population of Massachusetts?
Massachusetts had an estimated 6,996,721 residents on July 1, 2021, according to the U.S. Census Bureau, Population Estimates Program. That ranks 15th among the 51 states and the District of Columbia.
What is the median age in Massachusetts?
The median age in Massachusetts was 40.0 years in 2021, the 16th oldest of the 51 states and DC. That is 1.1 years older than the national median of 38.9.
How many people in Massachusetts are 65 or older?
About 1,260,738 residents of Massachusetts (18.0%) were 65 or older in 2021, against 15.7% under 15 and 66.3% aged 15 to 64.
What does the population pyramid of Massachusetts show?
In 2021, Massachusetts: more residents are 65 or older (18.0%) than under 15 (15.7%): an ageing, top-heavy pyramid. There were 93.8 men for every 100 women.
How fast is the population of Massachusetts changing?
The population of Massachusetts grew by 6.6% between 2010 and 2021, and by 0.2% in the last year.
More pyramids
All US states Population pyramid of the United States AlabamaAlaskaArizonaArkansasCaliforniaColoradoConnecticutDelawareDistrict of ColumbiaFloridaGeorgiaHawaiiIdahoIllinoisIndianaIowaKansasKentuckyLouisianaMaineMarylandMichiganMinnesotaMississippiMissouriMontanaNebraskaNevadaNew HampshireNew JerseyNew MexicoNew YorkNorth CarolinaNorth DakotaOhioOklahomaOregonPennsylvaniaRhode IslandSouth CarolinaSouth DakotaTennesseeTexasUtahVermontVirginiaWashingtonWest VirginiaWisconsinWyoming