Counties in Massachusetts by households, 2024

Middlesex County had the highest households of 14 counties in 2024, at 634,215. Nantucket County had the lowest, at 5,252. The median was 193,806 and the figure for Massachusetts was 2.79 million. Source: the U.S. Census Bureau.

Highest634,215Middlesex County

Lowest5,252Nantucket County

Median193,80614 counties

Massachusetts2,785,042History

Map of counties, 2024

Under 47K
47K to 120K
120K to 230K
230K to 320K
320K and over

count, 2024. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25003: occupied housing units (households). Retrieved 2026-10-12.

Full ranking

Rank	Counties	2024 count	Change on 2023
1	Middlesex County	634,215	+0.5%
2	Worcester County	335,826	+0.8%
3	Suffolk County	327,167	+1.5%
4	Essex County	313,147	+0.5%
5	Norfolk County	283,368	+0.7%
6	Bristol County	233,825	+0.7%
7	Plymouth County	203,141	+1.1%
8	Hampden County	184,471	+0.1%
9	Barnstable County	105,777	+2.7%
10	Hampshire County	62,114	+0.6%
11	Berkshire County	57,585	+1.9%
12	Franklin County	31,570	+0.2%
13	Dukes County	7,584	+3%
14	Nantucket County	5,252	+4%

Other periods

2024
2023
2022
2021

About this ranking

Number of households, which equals the number of occupied housing units. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

People living in group quarters, such as college dormitories, nursing homes and prisons, are not in households.

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 B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.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 B25003: occupied housing units (households) (Counties in Massachusetts by households, 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat

MLA 9

American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Massachusetts by households, 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Invokely, https://invokely.ai/rankings/households/massachusetts-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25003: occupied housing units (households). Counties in Massachusetts by households, 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Also distributed by Invokely, https://invokely.ai/rankings/households/massachusetts-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25003: occupied housing units (households), Counties in Massachusetts by households, 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat, via Invokely: https://invokely.ai/rankings/households/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 B25003: occupied housing units (households): Counties in Massachusetts by households, 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/households/massachusetts-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25003: occupied housing units (households): Counties in Massachusetts by households, 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-b25003.dat
L2  - https://invokely.ai/rankings/households/massachusetts-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/households/massachusetts-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25003: occupied housing units (households). https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25003.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest households?

Middlesex County, with 634,215 in 2024, according to the U.S. Census Bureau.

Which county has the lowest households?

Nantucket County, with 5,252 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 B25003: occupied housing units (households). Retrieved 2026-10-12.