Counties in Connecticut by employer firm births

Western Connecticut Planning Region had the highest employer firm births of 9 counties in 2017, at 959. Northeastern Connecticut Planning Region had the lowest, at 74. The median was 311 and the figure for Connecticut was 3,747. Source: the U.S. Census Bureau.

Highest959Western Connecticut Planning Region

Lowest74Northeastern Connecticut Planning Region

Median3119 counties

Connecticut3,747History

Map of counties, 2017

Under 140
140 to 260
260 to 360
360 to 720
720 and over

count, 2017. Source: U.S. Census Bureau, Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2017

count. Source: U.S. Census Bureau, Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Retrieved 2026-10-22.

Full ranking

Rank	Counties	2017 count	Change on 2016
1	Western Connecticut Planning Region	959	-12.1%
2	Capitol Planning Region	931	-13.3%
3	South Central Connecticut Planning Region	585	-9.9%
4	Naugatuck Valley Planning Region	378	-8%
5	Greater Bridgeport Planning Region	311	-8.5%
6	Southeastern Connecticut Planning Region	252	-1.2%
7	Lower Connecticut River Valley Planning Region	162	-22.9%
8	Northwest Hills Planning Region	105	-27.6%
9	Northeastern Connecticut Planning Region	74	-17.8%

Other periods

About this ranking

New employer firms: firms of age zero in March of the year, meaning that every establishment of the firm had its first employees during the previous twelve months. United States: Census Bureau Business Dynamics Statistics, which calls these firms startups.

A firm counts only when it has employees, so a business without staff is not a birth, and a new branch, merger or change of ownership of an existing firm is not a birth either. Not the same as business_applications (requests for an employer number) or enterprise_births (European business demography). The year is the twelve months to March: 2023 compares March 2022 with March 2023.

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. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Retrieved 2026-10-22.

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. (2025). Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978 (Counties in Connecticut by employer firm births, 2017) [Data set]. Retrieved October 22, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv

MLA 9

Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978, Counties in Connecticut by employer firm births, 2017. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Invokely, https://invokely.ai/rankings/employer-firm-births/connecticut-counties?period=2017. Accessed 22 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Counties in Connecticut by employer firm births, 2017. Dataset. Accessed October 22, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Also distributed by Invokely, https://invokely.ai/rankings/employer-firm-births/connecticut-counties?period=2017.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978, Counties in Connecticut by employer firm births, 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv, via Invokely: https://invokely.ai/rankings/employer-firm-births/connecticut-counties?period=2017 (Accessed: 22 October 2026).

BibTeX

@misc{census_counties_in_connecticut_by_2017,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978: Counties in Connecticut by employer firm births, 2017}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv},
  urldate = {2026-10-22},
  note = {Accessed via Invokely, https://invokely.ai/rankings/employer-firm-births/connecticut-counties?period=2017. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty\_fac.csv. Retrieved 2026-10-22.},
}

RIS

TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978: Counties in Connecticut by employer firm births, 2017
PY  - 2025
DA  - 2025/09/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv
L2  - https://invokely.ai/rankings/employer-firm-births/connecticut-counties?period=2017
Y2  - 2026/10/22
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firm-births/connecticut-counties?period=2017.
N1  - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Retrieved 2026-10-22.
ER  -

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Questions

Which county has the highest employer firm births?

Western Connecticut Planning Region, with 959 in 2017, according to the U.S. Census Bureau.

Which county has the lowest employer firm births?

Northeastern Connecticut Planning Region, with 74 in 2017.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Retrieved 2026-10-22.