Data / Rankings / Housing units authorized by building permits / Counties in Connecticut

Counties in Connecticut by housing units authorized by building permits, 2025

Western Connecticut Planning Region had the highest housing units authorized by building permits of 9 counties in 2025, at 2,749. Northwest Hills Planning Region had the lowest, at 133. The median was 513. Source: the U.S. Census Bureau.

Highest2,749Western Connecticut Planning Region
Lowest133Northwest Hills Planning Region
Median5139 counties

All counties, 2025

CSVChart (SVG)

Western Connecticut Planning Regi…Western Connecticut Planning Region: 2,749 count2,749Capitol Planning RegionCapitol Planning Region: 1,146 count1,146South Central Connecticut Plannin…South Central Connecticut Planning Region: 1,020 count1,020Greater Bridgeport Planning RegionGreater Bridgeport Planning Region: 729 count729Naugatuck Valley Planning RegionNaugatuck Valley Planning Region: 513 count513Southeastern Connecticut Planning…Southeastern Connecticut Planning Region: 440 count440Lower Connecticut River Valley Pl…Lower Connecticut River Valley Planning Region: 358 count358Northeastern Connecticut Planning…Northeastern Connecticut Planning Region: 185 count185Northwest Hills Planning RegionNorthwest Hills Planning Region: 133 count133
count. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-10.

Full ranking

RankCounties2025
count		Change on 2024
1Western Connecticut Planning Region Estimated2,749+151.3%
2Capitol Planning Region Estimated1,146-29.2%
3South Central Connecticut Planning Region Estimated1,020+0.6%
4Greater Bridgeport Planning Region Estimated729-10.9%
5Naugatuck Valley Planning Region Estimated513+61.8%
6Southeastern Connecticut Planning Region Estimated440-13.6%
7Lower Connecticut River Valley Planning Region Estimated358+33.1%
8Northeastern Connecticut Planning Region Estimated185+26.7%
9Northwest Hills Planning Region Estimated133-5.7%

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/co2025a.txt. Retrieved 2026-10-10.

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

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

Western Connecticut Planning Region, with 2,749 in 2025, according to the U.S. Census Bureau.

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

Northwest Hills Planning Region, with 133 in 2025.

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 Connecticut: more rankings