Congressional District 1
2021 planOne of Maine’s two U.S. House districts, as drawn in the 2021 redistricting plan and in effect since the 2022 election. It takes in 115 places. Represented by Chellie Pingree.
Voter Registration
Active voters, Secretary of State file of March 7, 2026Current enrollment
Registration history
Recent General Election Results
Referendums
YesNoCongressional District 1’s vote. Click a question for the statewide comparison.How Congressional District 1 Compares
Presidential margin vs. Maine
Democratic minus Republican share of the candidate vote. The gap between the lines shows how differently Congressional District 1 votes from the state.
Turnout in general elections
Ballots cast divided by active registered voters on election day. List maintenance shrinks the denominator in some years (for example 2022), which pushes the rate up.
Who Lives Here
American Community Survey 2020–2024Congressional District 1 at a Glance
Congressional District 1 is one of Maine’s two U.S. House districts, as drawn in the 2021 redistricting plan and in effect since the 2022 election. Its population was 695,717 in the 2020 Census.
It takes in 115 places, the largest of them Portland, South Portland, Biddeford, Scarborough, and Sanford. It is represented in the U.S. House of Representatives by Rep. Chellie Pingree (D-North Haven).
In the 2024 presidential race, Kamala Harris carried the district with 59.5% to 38.3% for Donald Trump. That was a Democratic margin of 21.2 points, against a Democratic margin of 6.9 points statewide. In the 2022 governor’s race, Janet Mills carried the district with 62.7% to 35.6% for Paul LePage. In the 2024 U.S. Senate race, Angus King (Unenrolled) carried the district with 55.3% to 30.2% for Demi Kouzounas.
As of March 7, 2026, Congressional District 1 had 469,478 active registered voters: 39.2% Democrats, 25.5% Republicans, 31.7% unenrolled, and 3.1% Green Independents. The median household income is $88,029 and the median home value $392,300, against $74,733 and $296,600 statewide.
Below the summary figures, this page has election results back to 1868, voter registration since 1958, referendum votes, turnout, and Census and American Community Survey figures. Sources are listed at the foot of the page and on the Data Sources page.