Counties in New Hampshire by housing units

Hillsborough County had the highest housing units of 10 counties in 2023, at 176,753. Coos County had the lowest, at 20,589. The median was 45,794 and the figure for New Hampshire was 644,253. Source: the U.S. Census Bureau.

Highest176,753Hillsborough County

Lowest20,589Coos County

Median45,79410 counties

New Hampshire644,253History

Map of counties, 2023

Under 33K
33K to 40K
40K to 53K
53K to 80K
80K and over

count, 2023. Source: U.S. Census Bureau, American Community Survey 5-year estimates, table B25001: total housing units. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

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

Full ranking

Rank	Counties	2023 count	Change on 2022
1	Hillsborough County	176,753	+0.6%
2	Rockingham County	136,681	+0.8%
3	Merrimack County	66,080	+0.5%
4	Strafford County	56,162	+0.9%
5	Grafton County	51,478	+0.6%
6	Carroll County	40,110	+0.6%
7	Belknap County	38,718	+0.6%
8	Cheshire County	35,777	+0.2%
9	Sullivan County	21,905	+0.2%
10	Coos County	20,589	+0.1%

Other periods

2024
2023
2022
2021

About this ranking

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.

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 B25001: total housing units. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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 (Counties in New Hampshire by housing units, 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat

MLA 9

American Community Survey 5-year estimates, table B25001: total housing units, Counties in New Hampshire by housing units, 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Invokely, https://invokely.ai/rankings/housing-units/new-hampshire-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B25001: total housing units. Counties in New Hampshire by housing units, 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Also distributed by Invokely, https://invokely.ai/rankings/housing-units/new-hampshire-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B25001: total housing units, Counties in New Hampshire by housing units, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat, via Invokely: https://invokely.ai/rankings/housing-units/new-hampshire-counties?period=2023 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_new_hampshire_2023,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B25001: total housing units: Counties in New Hampshire by housing units, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/housing-units/new-hampshire-counties?period=2023. 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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: Counties in New Hampshire by housing units, 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat
L2  - https://invokely.ai/rankings/housing-units/new-hampshire-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/housing-units/new-hampshire-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-b25001.dat. Retrieved 2026-10-12.
ER  -

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Questions

Which county has the highest housing units?

Hillsborough County, with 176,753 in 2023, according to the U.S. Census Bureau.

Which county has the lowest housing units?

Coos County, with 20,589 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, American Community Survey 5-year estimates, table B25001: total housing units. Retrieved 2026-10-12.