Population aged 18 to 64 in Southeastern Connecticut Planning Region

Population aged 18 to 64 in Southeastern Connecticut Planning Region was 60.4% in 2025, according to the U.S. Census Bureau. That is down 0.4 pts from 2024. That is the 4th highest of 9 counties in 2025.

202560.4%

Change on 2024-0.4 pts

Rank4th of 9Counties in Connecticut ranked

Series high622020

Series low60.42025

Next release: Friday, 25 June 2027, estimated by Invokely from past publication dates (low confidence), not announced by the publisher. Release calendar

Population aged 18 to 64 in Southeastern Connecticut Planning Region, 2020 to 2025

%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12, published 2026-06-25.

All 6 values

Period	%
2025	60.4
2024	60.8
2023	61.1
2022	61.5
2021	62
2020	62

Compared with Connecticut and United States

Place	2025
Southeastern Connecticut Planning Region	60.4
Connecticut	60.1
United States	60

Rankings

US states by population aged 18 to 64 51 places
Counties in Connecticut by population aged 18 to 64 9 places

Definition

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

How to cite

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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

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, county population by age and sex: residents aged 18 to 64 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 (Population aged 18 to 64, Southeastern Connecticut Planning Region, 2020 to 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: residents aged 18 to 64 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, Population aged 18 to 64, Southeastern Connecticut Planning Region, 2020 to 2025. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/en/population-18-64/southeastern-connecticut-planning-region-connecticut. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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. Population aged 18 to 64, Southeastern Connecticut Planning Region, 2020 to 2025. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/en/population-18-64/southeastern-connecticut-planning-region-connecticut.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 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, Population aged 18 to 64, Southeastern Connecticut Planning Region, 2020 to 2025 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/en/population-18-64/southeastern-connecticut-planning-region-connecticut (Accessed: 12 October 2026).

BibTeX

@misc{census_population_aged_18_to_2025,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 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: Population aged 18 to 64, Southeastern Connecticut Planning Region, 2020 to 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/en/population-18-64/southeastern-connecticut-planning-region-connecticut. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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: residents aged 18 to 64 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: Population aged 18 to 64, Southeastern Connecticut Planning Region, 2020 to 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/en/population-18-64/southeastern-connecticut-planning-region-connecticut
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/en/population-18-64/southeastern-connecticut-planning-region-connecticut.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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  -

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Questions

What is the population aged 18 to 64 in Southeastern Connecticut Planning Region?

Where does this figure come from?

U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 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 by Invokely on 2026-10-12.

What was the highest population aged 18 to 64 in Southeastern Connecticut Planning Region?

62% in 2020, the highest value since 2020 in this series.

Related statistics for Southeastern Connecticut Planning Region

All statistics for Southeastern Connecticut Planning Region | Southeastern Connecticut Planning Region in figures