Demographics & Population Data
Datasets by CTData
Population
Census Annual Population Estimates by County
Census Annual Population Estimates by Town
Decennial Population by County
Decennial Population by Town
DPH Annual Population Estimates by County
DPH Annual Population Estimates by Town
Population by Age by County
Population by Age by Town
Population by Race by County
Population by Race by Town
Population Projections by County
Population Projections by Town
Median Age by County
Median Age by Town
Veteran Status
Birth Data
Family Structure
Projects by CTData
2020 Demographics and Housing Explorer
The 2020 Demographic and Housing Characteristics File (DHC), released by the U.S. Census Bureau in May 2023, is one of many data products released as part of the 2020 decennial census.
ACS 2021 Tool
Connecticut Measured By 2021 American Community Survey, 5-year estimates. This interface maps some of the most in-demand variables for Connecticut towns. See also ACS 2017, ACS 2018, ACS 2019 and ACS 2020 versions.
Aggregate Margins of Error
Combine many estimates with margins of error into one aggregated estimate with a new margin of error.
CONNECT Regional Data Stories
Seven data stories about who lives and works in Connecticut, some of their educational experiences, and health outcomes.
County Stories
See how the 8 Connecticut counties compare in demographics and economy.
DMHAS Regional Data Stories
Regional interactive data stories show cross-sector data that describe general characteristics of each of five DMHAS regions.
Hartford Data Platform
A geospatial analysis that maps Hartford housing conditions with the 500 Cities dataset of health outcomes, to better understand which neighborhood conditions could be improved.
NEW: Hartford Young Children Data Story
An overview of young children in Hartford in an accessible format that is easy to navigate.
Living IN An Aging CONNECTICUT
Can Connecticut meet the needs of its changing demographics? And will we leverage the opportunities that come with ever-increasing numbers of older adults looking for ways to contribute their skills, talents and experience?
Women & Girls Data Platform
An online, interactive tool to provide access to publicly available data specific to regional, city, and statewide levels and aggregated for gender and race.
Town Profiles
Two-page PDF reports of demographic and economic information for Connecticut's towns.