Data / Rankings / Population aged 65 and over / Counties in Massachusetts

Counties in Massachusetts by share of population aged 65 and over

Barnstable County had the highest share of population aged 65 and over of 14 counties in 2022, at 33.8%. Suffolk County had the lowest, at 13.4%. The median was 19.1% and the figure for Massachusetts was 18.5%. Source: the U.S. Census Bureau.

Highest33.8Barnstable County
Lowest13.4Suffolk County
Median19.114 counties
Massachusetts18.5History

All counties, 2022

CSVChart (SVG)

Barnstable CountyBarnstable County: 33.8 %33.8Dukes CountyDukes County: 28.7 %28.7Berkshire CountyBerkshire County: 25.6 %25.6Franklin CountyFranklin County: 25.2 %25.2Plymouth CountyPlymouth County: 20.6 %20.6Hampshire CountyHampshire County: 20.1 %20.1Essex CountyEssex County: 19.2 %19.2Hampden CountyHampden County: 19.1 %19.1Bristol CountyBristol County: 18.6 %18.6Norfolk CountyNorfolk County: 18.5 %18.5Worcester CountyWorcester County: 17.5 %17.5Nantucket CountyNantucket County: 17.2 %17.2Middlesex CountyMiddlesex County: 16.9 %16.9Suffolk CountySuffolk County: 13.4 %13.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2022 (%)Change on 2021
1Barnstable County33.8+1 pts
2Dukes County28.7+1 pts
3Berkshire County25.6+0.8 pts
4Franklin County25.2+0.9 pts
5Plymouth County20.6+0.6 pts
6Hampshire County20.1+0.7 pts
7Essex County19.2+0.6 pts
8Hampden County19.1+0.6 pts
9Bristol County18.6+0.5 pts
10Norfolk County18.5+0.5 pts
11Worcester County17.5+0.5 pts
12Nantucket County17.2+0.7 pts
13Middlesex County16.9+0.3 pts
14Suffolk County13.4+0.3 pts

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

Use this data in your AI agent

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Rank Counties in Massachusetts by share of population aged 65 and over using official data, and cite the source.
rank_places {"indicator":"population_65_plus_share","level":"province","within":"Massachusetts","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=Massachusetts&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

Barnstable County, with 33.8% in 2022, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Suffolk County, with 13.4% in 2022.

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 (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.

Population aged 65 and over: other rankings

Counties in Massachusetts: more rankings