Data / Rankings / Business establishments (QCEW) / Counties in Connecticut

Counties in Connecticut by business establishments (QCEW), 2025

Capitol Planning Region had the highest business establishments (QCEW) of 9 counties in 2025, at 37,270. Northeastern Connecticut Planning Region had the lowest, at 3,034. The median was 11,068 and the figure for Connecticut was 149,082. Source: the U.S. Bureau of Labor Statistics.

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Highest37,270Capitol Planning Region
Lowest3,034Northeastern Connecticut Planning Region
Median11,0689 counties
Connecticut149,082History

Map of counties, 2025

Capitol Planning Region: 37,270 countGreater Bridgeport Planning Region: 11,068 countLower Connecticut River Valley Planning Region: 6,874 countNaugatuck Valley Planning Region: 13,660 countNortheastern Connecticut Planning Region: 3,034 countNorthwest Hills Planning Region: 4,738 countSouth Central Connecticut Planning Region: 21,097 countSoutheastern Connecticut Planning Region: 9,192 countWestern Connecticut Planning Region: 34,009 count
  • Under 6,000
  • 6,000 to 9,600
  • 9,600 to 13K
  • 13K to 26K
  • 26K and over
count, 2025. Source: BLS, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2025

Capitol Planning Region: 37,270 countCapitol Planning Region37,270Western Connecticut Planning Region: 34,009 countWestern Connecticut Planning Regi…34,009South Central Connecticut Planning Region: 21,097 countSouth Central Connecticut Plannin…21,097Naugatuck Valley Planning Region: 13,660 countNaugatuck Valley Planning Region13,660Greater Bridgeport Planning Region: 11,068 countGreater Bridgeport Planning Region11,068Southeastern Connecticut Planning Region: 9,192 countSoutheastern Connecticut Planning…9,192Lower Connecticut River Valley Planning Region: 6,874 countLower Connecticut River Valley Pl…6,874Northwest Hills Planning Region: 4,738 countNorthwest Hills Planning Region4,738Northeastern Connecticut Planning Region: 3,034 countNortheastern Connecticut Planning…3,034Capitol Planning Region: 37,270 countCapitol Planning Region37,270Western Connecticut Planning Region: 34,009 countWestern Connecticut Planning Region34,009South Central Connecticut Planning Region: 21,097 countSouth Central Connecticut Planning Region21,097Naugatuck Valley Planning Region: 13,660 countNaugatuck Valley Planning Region13,660Greater Bridgeport Planning Region: 11,068 countGreater Bridgeport Planning Region11,068Southeastern Connecticut Planning Region: 9,192 countSoutheastern Connecticut Planning Region9,192Lower Connecticut River Valley Planning Region: 6,874 countLower Connecticut River Valley Planning Region6,874Northwest Hills Planning Region: 4,738 countNorthwest Hills Planning Region4,738Northeastern Connecticut Planning Region: 3,034 countNortheastern Connecticut Planning Region3,034
count. Source: BLS, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2025
count		Change on 2024
1Capitol Planning Region37,270+1.8%
2Western Connecticut Planning Region34,009+2.1%
3South Central Connecticut Planning Region21,097+1.6%
4Naugatuck Valley Planning Region13,660+1%
5Greater Bridgeport Planning Region11,068+1.7%
6Southeastern Connecticut Planning Region9,192+1%
7Lower Connecticut River Valley Planning Region6,874+1.1%
8Northwest Hills Planning Region4,738+1.5%
9Northeastern Connecticut Planning Region3,034+2.4%

Other periods

About this ranking

Average number of establishments with jobs covered by unemployment insurance during the year, all industries, private and government, from the Quarterly Census of Employment and Wages (QCEW) of the U.S. Bureau of Labor Statistics. An establishment is a single place of business, such as a factory, store or office; a company with several locations has several.

Counts places of business, not firms: for firms use employer_firms. Changes in how large employers report their locations can move the count without any change in activity.

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. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2025/a/industry/10.csv. 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. Bureau of Labor Statistics. (2026). Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties (Counties in Connecticut by business establishments (QCEW), 2025) [Data set]. Retrieved October 12, 2026, from https://data.bls.gov/cew/data/api/2025/a/industry/10.csv

MLA 9

Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties, Counties in Connecticut by business establishments (QCEW), 2025. U.S. Bureau of Labor Statistics, 21 Aug. 2026, https://data.bls.gov/cew/data/api/2025/a/industry/10.csv. Invokely, https://invokely.ai/rankings/business-establishments/connecticut-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Bureau of Labor Statistics. 2026. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Counties in Connecticut by business establishments (QCEW), 2025. Dataset. Accessed October 12, 2026. https://data.bls.gov/cew/data/api/2025/a/industry/10.csv. Also distributed by Invokely, https://invokely.ai/rankings/business-establishments/connecticut-counties.

Harvard

U.S. Bureau of Labor Statistics (2026) Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties, Counties in Connecticut by business establishments (QCEW), 2025 [Dataset]. Available at: https://data.bls.gov/cew/data/api/2025/a/industry/10.csv, via Invokely: https://invokely.ai/rankings/business-establishments/connecticut-counties (Accessed: 12 October 2026).

BibTeX
@misc{bureau_counties_in_connecticut_by_2025,
  author = {{U.S. Bureau of Labor Statistics}},
  title = {{Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties: Counties in Connecticut by business establishments (QCEW), 2025}},
  year = {2026},
  howpublished = {Data set},
  url = {https://data.bls.gov/cew/data/api/2025/a/industry/10.csv},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/business-establishments/connecticut-counties. Publisher attribution: U.S. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2025/a/industry/10.csv. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Bureau of Labor Statistics
TI  - Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties: Counties in Connecticut by business establishments (QCEW), 2025
PY  - 2026
DA  - 2026/08/21
PB  - U.S. Bureau of Labor Statistics
DB  - Invokely
UR  - https://data.bls.gov/cew/data/api/2025/a/industry/10.csv
L2  - https://invokely.ai/rankings/business-establishments/connecticut-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/business-establishments/connecticut-counties.
N1  - Publisher attribution: U.S. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2025/a/industry/10.csv. Retrieved 2026-10-12.
ER  -
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Rank Counties in Connecticut by business establishments (QCEW) using official data, and cite the source.
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Questions

Which county has the highest business establishments (QCEW)?

Capitol Planning Region, with 37,270 in 2025, according to the U.S. Bureau of Labor Statistics.

Which county has the lowest business establishments (QCEW)?

Northeastern Connecticut Planning Region, with 3,034 in 2025.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Retrieved 2026-10-12.

Business establishments (QCEW): other rankings

Counties in Connecticut: more rankings