99chambers

U.S. House seat · lines in effect since 2022

Connecticut's 3rd District

A district of about 723,000 people, 40% of adults with a bachelor's degree. It votes D+16.1 relative to the nation for president.

Rosa L. DeLauro (D) · since Jan 3, 1991Next election Nov 7, 2028The 2026 race →
CT-3

Source: 2026 results: Connecticut Secretary of the State; boundaries: Census Bureau TIGER/LineUpdated Nov 7, 2026, 3:01 PM ET

Where it sits among all 435 seats

Every U.S. House seat by partisan lean, from most Democratic to most Republican. Lean is the seat's presidential vote on current lines, relative to the nation.

D+16.1136th most
Democratic
Most DemocraticMost Republican218th seat · the majority line41CT-325

Labels below the bar mark 4 other seats in Connecticut.

Source: 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Every race on these lines

Results recomputed from precinct returns as if today's boundaries had always existed, so years compare like for like.

202220242026
U.S. HouseD+16.2D+17.8D+25.7

Outlined: the race for this seat itselfBlank: no race that year

Source: 99chambers results archive: precinct results allocated to current lines; 2026: Connecticut Secretary of the StateUpdated Nov 7, 2026, 3:01 PM ET

Who lives here, compared

Grey bars show the spread of all 435 seats. Small marks are other seats in Connecticut. The black marker is CT-3.

Adults with a bachelor's degree40% 72nd pct · 2nd of 5 in CT

Higher than 72% of seats.

White adults without a degree36% 45th pct · 3rd of 5 in CT

Lower than 55% of seats.

Hispanic residents18% 62nd pct · 4th of 5 in CT

Higher than 62% of seats.

Black residents13% 70th pct · 2nd of 5 in CT

Higher than 70% of seats.

Asian residents4% 60th pct · 3rd of 5 in CT

Higher than 60% of seats.

People per square mile1,442 75th pct · 1st of 5 in CT

Denser than 75% of seats.

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current linesUpdated Oct 13, 2026, 5:06 AM ET

Seats most like this one

Nearest seats on demographics, density and lean.

NJ-1
36% college gradsD+20.3Held DCT-1
39% college gradsD+24.1Held DNY-25
42% college gradsD+19.3Held DRI-1
38% college gradsD+24.0Held D

Source: Census Bureau, American Community Survey 2020–2024 5-year estimates, allocated to current lines; 99chambers: 2024 and 2020 presidential results on current lines, relative to the nation (2024 weighted 3:1)Updated Oct 16, 2026, 5:19 AM ET

Who has held it

These lines took effect in 2022.

  1. Rosa L. Delauro (D)
    2023– · Won 2022 by 16.2, 2024 by 17.8, 2026 by 25.7

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)