Counties in Connecticut by female population share, 2025
South Central Connecticut Planning Region had the highest female population share of 9 counties in 2025, at 52.2%. Northeastern Connecticut Planning Region had the lowest, at 50.2%. The median was 51.3% and the figure for Connecticut was 51.4%. Source: the U.S. Census Bureau.
Map of counties, 2025
- Under 51
- 51 to 52
- 52 and over
All counties, 2025
Full ranking
| Rank | Counties | 2025 (%) | Change on 2024 |
|---|---|---|---|
| 1 | South Central Connecticut Planning Region | 52.2 | -0 pts |
| 2 | Greater Bridgeport Planning Region | 52.1 | -0 pts |
| 3 | Capitol Planning Region | 51.5 | -0 pts |
| 4 | Naugatuck Valley Planning Region | 51.4 | -0 pts |
| 5 | Lower Connecticut River Valley Planning Region | 51.3 | 0 pts |
| 6 | Western Connecticut Planning Region | 51.1 | -0 pts |
| 7 | Southeastern Connecticut Planning Region | 50.7 | -0 pts |
| 8 | Northwest Hills Planning Region | 50.3 | -0.1 pts |
| 9 | Northeastern Connecticut Planning Region | 50.2 | 0 pts |
Other periods
About this ranking
Female residents as a percentage of total population on 1 July. United States: Census Bureau county population estimates by sex; states and the nation are sums of their counties.
Counties with large prisons or military bases can have low shares.
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, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.Citation styles
APA 7
U.S. Census Bureau. (2026). Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in Connecticut by female population share, 2025) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html
MLA 9
Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Connecticut by female population share, 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/female-population-share/connecticut-counties. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in Connecticut by female population share, 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/female-population-share/connecticut-counties.
Harvard
U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in Connecticut by female population share, 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/female-population-share/connecticut-counties (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_connecticut_by_2025,
author = {{U.S. Census Bureau}},
title = {{Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Connecticut by female population share, 2025}},
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/female-population-share/connecticut-counties. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. 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, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in Connecticut by female population share, 2025
PY - 2026
DA - 2026/06/25
PB - U.S. Census Bureau
DB - Invokely
UR - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2 - https://invokely.ai/rankings/female-population-share/connecticut-counties
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/female-population-share/connecticut-counties.
N1 - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER -
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 female population share using official data, and cite the source.
rank_places {"indicator":"female_share","level":"province","within":"Connecticut","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=female_share&level=province&within=Connecticut&limit=10Questions
Which county has the highest female population share?
South Central Connecticut Planning Region, with 52.2% in 2025, according to the U.S. Census Bureau.
Which county has the lowest female population share?
Northeastern Connecticut Planning Region, with 50.2% in 2025.
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, county population by age and sex: female residents as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.