Connecticut's 3rd Congressional District
Connecticut · CT-03
Connecticut's 3rd Congressional District is one of 5 U.S. House districts in Connecticut, represented in Congress by Rosa DeLauro (Democrat). It is home to roughly 716,025 people, with a median age of 40.9. The population is about 61% White. The median household income is $89,188, and 40% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted leaning Democratic (D+14).
Representative
Current U.S. House member (source: house.gov).
Geography
CT-03 is shown in red. Click a neighboring district to open it, or zoom out to explore the country.
Covering 488 square miles, CT-03 is the 324th-largest of the 435 congressional districts by land area. With about 1,467 residents per square mile, it is a largely suburban district. Its shape is irregular: the district's Polsby-Popper score of 0.26 ranks 239th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 56% of CT-03 voters backed Kamala Harris and 42% Donald Trump — a D+14 margin. That is a 6.0-point shift toward the Republicans from 2020, when the district voted D+20.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 40.9 years old; 19.3% of residents are under 18 and 18.5% are 65 or older. About 13.9% of residents were born outside the United States, and 21.3% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $89,188, the district's median household income ranks 130th of 435 districts nationwide. The typical owner-occupied home is worth $327,378, and the median rent is $1,472 a month. 10.3% of residents live below the poverty line, and workers average a 26.8-minute commute (12.8% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).