Counties in Connecticut by foreign-born share of the population

Name: Counties in Connecticut by foreign-born share of the population, 2022
Creator: U.S. Census Bureau
License: Public domain (US federal government work, citation requested)

Western Connecticut Planning Region had the highest foreign-born share of the population of 9 counties in 2022, at 23.2%. Northeastern Connecticut Planning Region had the lowest, at 4.7%. The median was 13% and the figure for Connecticut was 15%. Source: the U.S. Census Bureau.

Highest23.2Western Connecticut Planning Region

Lowest4.7Northeastern Connecticut Planning Region

Median139 counties

Connecticut15History

All counties, 2022

CSV Chart (SVG)

%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

Rank	Counties	2022 (%)
1	Western Connecticut Planning Region	23.2
2	Greater Bridgeport Planning Region	21
3	Capitol Planning Region	14.7
4	Naugatuck Valley Planning Region	13.4
5	South Central Connecticut Planning Region	13
6	Northwest Hills Planning Region	9.5
7	Southeastern Connecticut Planning Region	8.2
8	Lower Connecticut River Valley Planning Region	8
9	Northeastern Connecticut Planning Region	4.7

Other periods

2024
2023
2022

About this ranking

People who were not US citizens at birth, as a percentage of the total population. Includes naturalized citizens, lawful permanent residents, temporary migrants and unauthorized immigrants. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Based on place of birth, not nationality: a naturalized citizen counts as foreign born, and people born in Puerto Rico, the US island areas or abroad to American parents count as native. Not comparable with foreign_population_share, which counts foreign nationals in Spain and the EU. Calculated from counts in ACS table B05002, which are stored as inputs.

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 B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b05002.dat. Retrieved 2026-10-09.

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Rank Counties in Connecticut by foreign-born share of the population using official data, and cite the source.

rank_places {"indicator":"foreign_born_share","level":"province","within":"Connecticut","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=foreign_born_share&level=province&within=Connecticut&limit=10

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Questions

Which county has the highest foreign-born share of the population?

Western Connecticut Planning Region, with 23.2% in 2022, according to the U.S. Census Bureau.

Which county has the lowest foreign-born share of the population?

Northeastern Connecticut Planning Region, with 4.7% in 2022.

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 B05002: foreign-born population as a percentage of the total population, calculated with stored inputs. Retrieved 2026-10-09.