Data / Rankings / High school graduate or higher, population 25 and over / Counties in Massachusetts

Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024

Barnstable County had the highest high school graduate or higher, population 25 and over of 14 counties in 2024, at 96.2%. Bristol County had the lowest, at 86.7%. The median was 93.2% and the figure for Massachusetts was 91.4%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest96.2Barnstable County
Lowest86.7Bristol County
Median93.214 counties
Massachusetts91.4History

Map of counties, 2024

Barnstable County: 96.2 %Berkshire County: 94.1 %Bristol County: 86.7 %Dukes County: 95.3 %Essex County: 90.1 %Franklin County: 94.5 %Hampden County: 87.2 %Hampshire County: 95.4 %Middlesex County: 93.2 %Nantucket County: 93.2 %Norfolk County: 94.5 %Plymouth County: 93.1 %Suffolk County: 87.5 %Worcester County: 91.2 %
  • Under 89
  • 89 to 93
  • 93 to 94
  • 94 to 95
  • 95 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Barnstable County: 96.2 %Barnstable County96.2Hampshire County: 95.4 %Hampshire County95.4Dukes County: 95.3 %Dukes County95.3Franklin County: 94.5 %Franklin County94.5Norfolk County: 94.5 %Norfolk County94.5Berkshire County: 94.1 %Berkshire County94.1Middlesex County: 93.2 %Middlesex County93.2Nantucket County: 93.2 %Nantucket County93.2Plymouth County: 93.1 %Plymouth County93.1Worcester County: 91.2 %Worcester County91.2Essex County: 90.1 %Essex County90.1Suffolk County: 87.5 %Suffolk County87.5Hampden County: 87.2 %Hampden County87.2Bristol County: 86.7 %Bristol County86.7Barnstable County: 96.2 %Barnstable County96.2Hampshire County: 95.4 %Hampshire County95.4Dukes County: 95.3 %Dukes County95.3Franklin County: 94.5 %Franklin County94.5Norfolk County: 94.5 %Norfolk County94.5Berkshire County: 94.1 %Berkshire County94.1Middlesex County: 93.2 %Middlesex County93.2Nantucket County: 93.2 %Nantucket County93.2Plymouth County: 93.1 %Plymouth County93.1Worcester County: 91.2 %Worcester County91.2Essex County: 90.1 %Essex County90.1Suffolk County: 87.5 %Suffolk County87.5Hampden County: 87.2 %Hampden County87.2Bristol County: 86.7 %Bristol County86.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Barnstable County96.2-0.1 pts
2Hampshire County95.4-0 pts
3Dukes County95.30 pts
4Franklin County94.5+0.5 pts
4Norfolk County94.5+0.1 pts
6Berkshire County94.1+0.4 pts
7Middlesex County93.2-0.2 pts
8Nantucket County93.2-2.8 pts
9Plymouth County93.1-0.2 pts
10Worcester County91.2-0.1 pts
11Essex County90.1-0.1 pts
12Suffolk County87.5-0.1 pts
13Hampden County87.20 pts
14Bristol County86.7+0.4 pts

Other periods

About this ranking

People aged 25 and over who hold a regular high school diploma, a GED or alternative credential, or any higher level of education, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Measures the adult population, not students: it is not the high school graduation rate of a class. Not comparable with the EU share below upper secondary education, which covers ages 25 to 64.

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. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. 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). American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs (Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat

MLA 9

American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/massachusetts-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Also distributed by Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/massachusetts-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs, Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat, via Invokely: https://invokely.ai/rankings/high-school-graduate-or-higher/massachusetts-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_massachusetts_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/massachusetts-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs: Counties in Massachusetts by high school graduate or higher, population 25 and over, 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat
L2  - https://invokely.ai/rankings/high-school-graduate-or-higher/massachusetts-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/high-school-graduate-or-higher/massachusetts-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b15003.dat. Retrieved 2026-10-12.
ER  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Massachusetts by high school graduate or higher, population 25 and over using official data, and cite the source.
rank_places {"indicator":"high_school_graduate_share","level":"province","within":"Massachusetts","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=high_school_graduate_share&level=province&within=Massachusetts&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest high school graduate or higher, population 25 and over?

Barnstable County, with 96.2% in 2024, according to the U.S. Census Bureau.

Which county has the lowest high school graduate or higher, population 25 and over?

Bristol County, with 86.7% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a high school diploma, GED or higher as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-12.

High school graduate or higher, population 25 and over: other rankings

Counties in Massachusetts: more rankings