Data / Housing units / Middlesex County

Housing units in Middlesex County

Housing units in Middlesex County was 664,267 in 2024, according to the U.S. Census Bureau. That is up 0.5% from 2023. That is the 1st highest of 14 counties in 2024.

2024, count664,267
Change on 2023+0.5%
Rank1st of 14Counties in Massachusetts ranked
Series high664,2672024
Series low653,6212021

Next release: Friday, 29 January 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

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Housing units in Middlesex County, 2021 to 2024

652.5K655K657.5K660K662.5K665K20212022202320242021: 653,621 count2022: 658,555 count2023: 660,814 count2024: 664,267 count
count. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12, published 2026-01-29.
All 4 values
Periodcount
2024664,267
2023660,814
2022658,555
2021653,621

Compared with Massachusetts and United States

Place2024
Middlesex County664,267
Massachusetts3,030,406
United States143,775,355

Rankings

Definition

All housing units, occupied and vacant: houses, apartments, mobile homes and rooms intended as separate living quarters. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

A survey estimate averaged over five years, not a count on one date.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.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 B25001: total housing units (Housing units, Middlesex County, 2021 to 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat

MLA 9

American Community Survey 5-year estimates, table B25001: total housing units, Housing units, Middlesex County, 2021 to 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Invokely, https://invokely.ai/en/housing-units/middlesex-county-massachusetts. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25001: total housing units. Housing units, Middlesex County, 2021 to 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Also distributed by Invokely, https://invokely.ai/en/housing-units/middlesex-county-massachusetts.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Housing units, Middlesex County, 2021 to 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat, via Invokely: https://invokely.ai/en/housing-units/middlesex-county-massachusetts (Accessed: 12 October 2026).

BibTeX
@misc{census_housing_units_middlesex_county_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Housing units, Middlesex County, 2021 to 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/en/housing-units/middlesex-county-massachusetts. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B25001: total housing units: Housing units, Middlesex County, 2021 to 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-b25001.dat
L2  - https://invokely.ai/en/housing-units/middlesex-county-massachusetts
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/housing-units/middlesex-county-massachusetts.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b25001.dat. Retrieved 2026-10-12.
ER  -
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Questions

What is the housing units in Middlesex County?

Housing units in Middlesex County was 664,267 in 2024, according to the U.S. Census Bureau. That is up 0.5% from 2023. That is the 1st highest of 14 counties in 2024.

Where does this figure come from?

U.S. Census Bureau. American Community Survey 5-year estimates, table B25001: total housing units. Retrieved by Invokely on 2026-10-12.

What was the highest housing units in Middlesex County?

664,267 in 2024, the highest value since 2021 in this series.

Related statistics for Middlesex County

All statistics for Middlesex County | Middlesex County in figures