Data / Rankings / Population aged 18 to 64 / Counties in Massachusetts

Counties in Massachusetts by population aged 18 to 64

Suffolk County had the highest population aged 18 to 64 of 14 counties in 2023, at 70.6%. Barnstable County had the lowest, at 52.1%. The median was 60.4% and the figure for Massachusetts was 62.1%. Source: the U.S. Census Bureau.

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Highest70.6Suffolk County
Lowest52.1Barnstable County
Median60.414 counties
Massachusetts62.1History

Map of counties, 2023

Barnstable County: 52.1 %Berkshire County: 57.8 %Bristol County: 61 %Dukes County: 54.2 %Essex County: 59.8 %Franklin County: 57.8 %Hampden County: 59.7 %Hampshire County: 65.7 %Middlesex County: 63.6 %Nantucket County: 63.7 %Norfolk County: 61.1 %Plymouth County: 58.7 %Suffolk County: 70.6 %Worcester County: 62 %
  • Under 58
  • 58 to 60
  • 60 to 61
  • 61 to 64
  • 64 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Suffolk County: 70.6 %Suffolk County70.6Hampshire County: 65.7 %Hampshire County65.7Nantucket County: 63.7 %Nantucket County63.7Middlesex County: 63.6 %Middlesex County63.6Worcester County: 62 %Worcester County62Norfolk County: 61.1 %Norfolk County61.1Bristol County: 61 %Bristol County61Essex County: 59.8 %Essex County59.8Hampden County: 59.7 %Hampden County59.7Plymouth County: 58.7 %Plymouth County58.7Franklin County: 57.8 %Franklin County57.8Berkshire County: 57.8 %Berkshire County57.8Dukes County: 54.2 %Dukes County54.2Barnstable County: 52.1 %Barnstable County52.1Suffolk County: 70.6 %Suffolk County70.6Hampshire County: 65.7 %Hampshire County65.7Nantucket County: 63.7 %Nantucket County63.7Middlesex County: 63.6 %Middlesex County63.6Worcester County: 62 %Worcester County62Norfolk County: 61.1 %Norfolk County61.1Bristol County: 61 %Bristol County61Essex County: 59.8 %Essex County59.8Hampden County: 59.7 %Hampden County59.7Plymouth County: 58.7 %Plymouth County58.7Franklin County: 57.8 %Franklin County57.8Berkshire County: 57.8 %Berkshire County57.8Dukes County: 54.2 %Dukes County54.2Barnstable County: 52.1 %Barnstable County52.1
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Suffolk County70.6-0.1 pts
2Hampshire County65.7-0.3 pts
3Nantucket County63.7-0.6 pts
4Middlesex County63.6-0.2 pts
5Worcester County62-0.3 pts
6Norfolk County61.1-0.3 pts
7Bristol County61-0.3 pts
8Essex County59.8-0.4 pts
9Hampden County59.7-0.3 pts
10Plymouth County58.7-0.3 pts
11Franklin County57.8-0.5 pts
12Berkshire County57.8-0.3 pts
13Dukes County54.2-1.1 pts
14Barnstable County52.1-0.6 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Massachusetts by population aged 18 to 64, 2023) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Massachusetts by population aged 18 to 64, 2023. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/massachusetts-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Massachusetts by population aged 18 to 64, 2023. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/massachusetts-counties?period=2023.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Massachusetts by population aged 18 to 64, 2023 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/massachusetts-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_massachusetts_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Massachusetts by population aged 18 to 64, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/massachusetts-counties?period=2023. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Massachusetts by population aged 18 to 64, 2023
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/massachusetts-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/massachusetts-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Rank Counties in Massachusetts by population aged 18 to 64 using official data, and cite the source.
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Questions

Which county has the highest population aged 18 to 64?

Suffolk County, with 70.6% in 2023, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Barnstable County, with 52.1% in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in Massachusetts: more rankings