Data / Rankings / Net domestic migration, July to June / Counties in Connecticut

Counties in Connecticut by net domestic migration, July to June

Naugatuck Valley Planning Region had the highest net domestic migration, July to June of 9 counties in 2023, at 925. Western Connecticut Planning Region had the lowest, at -4,779. The median was 175 and the figure for Connecticut was -6,498. Source: the U.S. Census Bureau.

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Highest925Naugatuck Valley Planning Region
Lowest-4,779Western Connecticut Planning Region
Median1759 counties
Connecticut-6,498History

Map of counties, 2023

Capitol Planning Region: -481 personsGreater Bridgeport Planning Region: -2,127 personsLower Connecticut River Valley Planning Region: 175 personsNaugatuck Valley Planning Region: 925 personsNortheastern Connecticut Planning Region: 609 personsNorthwest Hills Planning Region: 245 personsSouth Central Connecticut Planning Region: -1,430 personsSoutheastern Connecticut Planning Region: 365 personsWestern Connecticut Planning Region: -4,779 persons
  • Under -2,100
  • -2,100 to -1,400
  • -1,400 to 0
  • 0 to 290
  • 290 to 530
  • 530 and over
persons, 2023. Red areas are below zero and blue areas above it. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Naugatuck Valley Planning Region: 925 personsNaugatuck Valley Planning Region925Northeastern Connecticut Planning Region: 609 personsNortheastern Connecticut Planning…609Southeastern Connecticut Planning Region: 365 personsSoutheastern Connecticut Planning…365Northwest Hills Planning Region: 245 personsNorthwest Hills Planning Region245Lower Connecticut River Valley Planning Region: 175 personsLower Connecticut River Valley Pl…175Capitol Planning Region: -481 personsCapitol Planning Region-481South Central Connecticut Planning Region: -1,430 personsSouth Central Connecticut Plannin…-1,430Greater Bridgeport Planning Region: -2,127 personsGreater Bridgeport Planning Region-2,127Western Connecticut Planning Region: -4,779 personsWestern Connecticut Planning Regi…-4,779Naugatuck Valley Planning Region: 925 personsNaugatuck Valley Planning Region925Northeastern Connecticut Planning Region: 609 personsNortheastern Connecticut Planning Region609Southeastern Connecticut Planning Region: 365 personsSoutheastern Connecticut Planning Region365Northwest Hills Planning Region: 245 personsNorthwest Hills Planning Region245Lower Connecticut River Valley Planning Region: 175 personsLower Connecticut River Valley Planning Region175Capitol Planning Region: -481 personsCapitol Planning Region-481South Central Connecticut Planning Region: -1,430 personsSouth Central Connecticut Planning Region-1,430Greater Bridgeport Planning Region: -2,127 personsGreater Bridgeport Planning Region-2,127Western Connecticut Planning Region: -4,779 personsWestern Connecticut Planning Region-4,779
persons. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.

Full ranking

RankCounties2023
persons		Change on 2022
1Naugatuck Valley Planning Region Estimated925+408.2%
2Northeastern Connecticut Planning Region Estimated609-3.8%
3Southeastern Connecticut Planning Region Estimated365+199.7%
4Northwest Hills Planning Region Estimated245-45.1%
5Lower Connecticut River Valley Planning Region Estimated175-70.1%
6Capitol Planning Region Estimated-481+75.3%
7South Central Connecticut Planning Region Estimated-1,430+29.5%
8Greater Bridgeport Planning Region Estimated-2,127+17.6%
9Western Connecticut Planning Region Estimated-4,779+20.7%

Other periods

About this ranking

Estimated moves into an area from elsewhere in the same country minus moves out to the rest of the country, from July 1 of the previous year through June 30 of the reported year.

More on how it is measured
  • United States: states and counties.
  • Canada: provinces and territories, net interprovincial migration (Statistics Canada).
  • United Kingdom: local authorities, counting moves between any two UK local authorities, including across the borders of England, Wales, Scotland and Northern Ireland (ONS internal migration).
  • A negative value means more people left than arrived.

Sums to zero, or close to it, for each country as a whole, so there is no national value.

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. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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. Census Bureau. (2026). Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021 (Counties in Connecticut by net domestic migration, July to June, 2023) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Connecticut by net domestic migration, July to June, 2023. U.S. Census Bureau, 26 Mar. 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/connecticut-counties?period=2023. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Counties in Connecticut by net domestic migration, July to June, 2023. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/connecticut-counties?period=2023.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021, Counties in Connecticut by net domestic migration, July to June, 2023 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-domestic-migration-july-june/connecticut-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_connecticut_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Connecticut by net domestic migration, July to June, 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/connecticut-counties?period=2023. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021: Counties in Connecticut by net domestic migration, July to June, 2023
PY  - 2026
DA  - 2026/03/26
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/net-domestic-migration-july-june/connecticut-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-july-june/connecticut-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Rank Counties in Connecticut by net domestic migration, July to June using official data, and cite the source.
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Questions

Which county has the highest net domestic migration, July to June?

Naugatuck Valley Planning Region, with 925 in 2023, according to the U.S. Census Bureau.

Which county has the lowest net domestic migration, July to June?

Western Connecticut Planning Region, with -4,779 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, Population Estimates Program: net domestic migration, states and counties, July 1 of the previous year to June 30 of the reported year; vintage 2020 files for 2011 to 2020 and the latest 2020s vintage from 2021. Retrieved 2026-10-12.

Net domestic migration, July to June: other rankings

Counties in Connecticut: more rankings