U.S. flag

An official website of the United States government

Skip Header

Connecticut’s Population Inched Up 0.9% Last Decade

Written by:

America Counts today launches a state-by-state look at the demographic changes the new 2020 Census results reveal.

Our state profiles bring you all key population characteristics of your state and your county on one page.

See how they compare to the nation overall and to neighboring counties and states. Through interactive state and county maps for the 50 states, the District of Columbia and Puerto Rico, each page provides a snapshot of change from 2010 to 2020 on five topics.

Here are some key national-level 2020 Census results to help you see how your state or county compares in each topic area:  

  • Population (up 7.4% to 331.4 million).
  • Race and ethnicity (White alone 61.6%; Black alone 12.4%; Hispanic 18.7%; Asian alone 6%; American Indian and Alaska Native alone 1.1%; Native Hawaiian and Other Pacific Islander alone 0.2%; Some Other Race alone 8.4%; Two or More Races 10.2%).
  • Diversity Index (61.1%, up from 54.9%).
  • Under-18 (down 1.4%) and adult population (up 10.1%).
  • Housing units (up 6.7%) and vacancies (down to 9.7%).


Connecticut - Northeast

State Profile

Population and Housing

Race and Ethnicity



2020 Census Demographic Data Map Viewer The 2020 Census Demographic Data Map Viewer is a web map application that includes state-, county-, and census tract-level data from the 2020 Census.


Our email newsletter is sent out on the day we publish a story. Get an alert directly in your inbox to read, share and blog about our newest stories.



America Counts tells the stories behind the numbers in a new inviting way. We feature stories on various topics such as families, housing, employment, business, education, the economy, emergency management, health, population, income and poverty.

Contact our Public Information Office for media inquiries or interviews.


Surveys/Programs > Decennial

The U.S. Census Bureau provides the 50 states, the District of Columbia, and Puerto Rico with population counts to use in their redrawing of congressional and state legisla­tive district boundaries — a process known as “redistricting.”

While the states are responsible for legislative redistricting, the Census Bureau provides population counts possible for the geographic areas the states need.

This story was filed under:



Back to Header