Data / Rankings / Housing units authorized by building permits / Counties in New Hampshire

Counties in New Hampshire by housing units authorized by building permits

Hillsborough County had the highest housing units authorized by building permits of 10 counties in 2023, at 1,382. Coos County had the lowest, at 93. The median was 391. Source: the U.S. Census Bureau.

Highest1,382Hillsborough County
Lowest93Coos County
Median39110 counties

All counties, 2023

CSVChart (SVG)

Hillsborough CountyHillsborough County: 1,382 count1,382Rockingham CountyRockingham County: 799 count799Strafford CountyStrafford County: 498 count498Grafton CountyGrafton County: 410 count410Carroll CountyCarroll County: 399 count399Merrimack CountyMerrimack County: 383 count383Belknap CountyBelknap County: 354 count354Cheshire CountyCheshire County: 140 count140Sullivan CountySullivan County: 97 count97Coos CountyCoos County: 93 count93
count. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2023
count
1Hillsborough County Estimated1,382
2Rockingham County Estimated799
3Strafford County Estimated498
4Grafton County Estimated410
5Carroll County Estimated399
6Merrimack County Estimated383
7Belknap County Estimated354
8Cheshire County Estimated140
9Sullivan County Estimated97
10Coos County Estimated93

Other periods

About this ranking

Annual number of new privately owned housing units authorized by building permits, from the US Census Bureau Building Permits Survey.

Final annual county estimates include imputation for missing reports. Counts housing units, not buildings, starts, completions or sales. Covers permit-issuing areas; areas where permits are not required are outside the survey. Not seasonally adjusted or expressed as an annualized monthly rate. The total is the sum of units in the four published structure categories; inputs are retained.

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. Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. https://www2.census.gov/econ/bps/County/co2023a.txt. Retrieved 2026-10-10.

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Rank Counties in New Hampshire by housing units authorized by building permits using official data, and cite the source.
rank_places {"indicator":"building_permit_units","level":"province","within":"New Hampshire","limit":10}
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Questions

Which county has the highest housing units authorized by building permits?

Hillsborough County, with 1,382 in 2023, according to the U.S. Census Bureau.

Which county has the lowest housing units authorized by building permits?

Coos County, with 93 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, Building Permits Survey: final annual county estimates of new privately owned housing units authorized, including imputation. Retrieved 2026-10-10.

Housing units authorized by building permits: other rankings

Counties in New Hampshire: more rankings