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

Counties in Connecticut by net domestic migration rate, July to June

Lower Connecticut River Valley Planning Region had the highest net domestic migration rate, July to June of 9 counties in 2021, at 14.65 per 1,000 inhabitants. Greater Bridgeport Planning Region had the lowest, at 1.81 per 1,000 inhabitants. The median was 6.32 per 1,000 inhabitants and the figure for Connecticut was 5.75 per 1,000 inhabitants. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest14.65Lower Connecticut River Valley Planning Region
Lowest1.81Greater Bridgeport Planning Region
Median6.329 counties
Connecticut5.75History

Map of counties, 2021

Capitol Planning Region: 6.32 per 1,000 inhabitantsGreater Bridgeport Planning Region: 1.81 per 1,000 inhabitantsLower Connecticut River Valley Planning Region: 14.65 per 1,000 inhabitantsNaugatuck Valley Planning Region: 5.51 per 1,000 inhabitantsNortheastern Connecticut Planning Region: 6.35 per 1,000 inhabitantsNorthwest Hills Planning Region: 8.83 per 1,000 inhabitantsSouth Central Connecticut Planning Region: 6.48 per 1,000 inhabitantsSoutheastern Connecticut Planning Region: 4.67 per 1,000 inhabitantsWestern Connecticut Planning Region: 3.78 per 1,000 inhabitants
  • Under 4.3
  • 4.3 to 5.7
  • 5.7 to 6.3
  • 6.3 to 7.4
  • 7.4 and over
per 1,000 inhabitants, 2021. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration rate per 1,000 residents, 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, 2021

Lower Connecticut River Valley Planning Region: 14.65 per 1,000 inhabitantsLower Connecticut River Valley Pl…14.65Northwest Hills Planning Region: 8.83 per 1,000 inhabitantsNorthwest Hills Planning Region8.83South Central Connecticut Planning Region: 6.48 per 1,000 inhabitantsSouth Central Connecticut Plannin…6.48Northeastern Connecticut Planning Region: 6.35 per 1,000 inhabitantsNortheastern Connecticut Planning…6.35Capitol Planning Region: 6.32 per 1,000 inhabitantsCapitol Planning Region6.32Naugatuck Valley Planning Region: 5.51 per 1,000 inhabitantsNaugatuck Valley Planning Region5.51Southeastern Connecticut Planning Region: 4.67 per 1,000 inhabitantsSoutheastern Connecticut Planning…4.67Western Connecticut Planning Region: 3.78 per 1,000 inhabitantsWestern Connecticut Planning Regi…3.78Greater Bridgeport Planning Region: 1.81 per 1,000 inhabitantsGreater Bridgeport Planning Region1.81Lower Connecticut River Valley Planning Region: 14.65 per 1,000 inhabitantsLower Connecticut River Valley Planning Region14.65Northwest Hills Planning Region: 8.83 per 1,000 inhabitantsNorthwest Hills Planning Region8.83South Central Connecticut Planning Region: 6.48 per 1,000 inhabitantsSouth Central Connecticut Planning Region6.48Northeastern Connecticut Planning Region: 6.35 per 1,000 inhabitantsNortheastern Connecticut Planning Region6.35Capitol Planning Region: 6.32 per 1,000 inhabitantsCapitol Planning Region6.32Naugatuck Valley Planning Region: 5.51 per 1,000 inhabitantsNaugatuck Valley Planning Region5.51Southeastern Connecticut Planning Region: 4.67 per 1,000 inhabitantsSoutheastern Connecticut Planning Region4.67Western Connecticut Planning Region: 3.78 per 1,000 inhabitantsWestern Connecticut Planning Region3.78Greater Bridgeport Planning Region: 1.81 per 1,000 inhabitantsGreater Bridgeport Planning Region1.81
per 1,000 inhabitants. Source: U.S. Census Bureau, Population Estimates Program: net domestic migration rate per 1,000 residents, 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

RankCounties2021
per 1,000 inhabitants
1Lower Connecticut River Valley Planning Region Estimated14.65
2Northwest Hills Planning Region Estimated8.83
3South Central Connecticut Planning Region Estimated6.48
4Northeastern Connecticut Planning Region Estimated6.35
5Capitol Planning Region Estimated6.32
6Naugatuck Valley Planning Region Estimated5.51
7Southeastern Connecticut Planning Region Estimated4.67
8Western Connecticut Planning Region Estimated3.78
9Greater Bridgeport Planning Region Estimated1.81

Other periods

About this ranking

Net domestic migration into a US state or county from July 1 of the previous year through June 30 of the reported year per 1,000 residents, using the average of the population estimates at the two July 1 endpoints.

Sums to zero for the United States 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 rate per 1,000 residents, 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 rate per 1,000 residents, 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 rate, July to June, 2021) [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 rate per 1,000 residents, 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 rate, July to June, 2021. 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-rate-july-june/connecticut-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program: net domestic migration rate per 1,000 residents, 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 rate, July to June, 2021. 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-rate-july-june/connecticut-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Population Estimates Program: net domestic migration rate per 1,000 residents, 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 rate, July to June, 2021 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/net-domestic-migration-rate-july-june/connecticut-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_connecticut_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program: net domestic migration rate per 1,000 residents, 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 rate, July to June, 2021}},
  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-rate-july-june/connecticut-counties?period=2021. Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration rate per 1,000 residents, 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 rate per 1,000 residents, 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 rate, July to June, 2021
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-rate-july-june/connecticut-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/net-domestic-migration-rate-july-june/connecticut-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program: net domestic migration rate per 1,000 residents, 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  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Connecticut by net domestic migration rate, July to June using official data, and cite the source.
rank_places {"indicator":"net_domestic_migration_rate_july_june","level":"province","within":"Connecticut","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=net_domestic_migration_rate_july_june&level=province&within=Connecticut&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

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

Lower Connecticut River Valley Planning Region, with 14.65 per 1,000 inhabitants in 2021, according to the U.S. Census Bureau.

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

Greater Bridgeport Planning Region, with 1.81 per 1,000 inhabitants in 2021.

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 rate per 1,000 residents, 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 rate, July to June: other rankings

Counties in Connecticut: more rankings