Southport
Incorporated 1842 as TownsendIncorporated as Townsend, the name of the colonial settlement here; renamed Southport in 1850 after Southport, England. The Abenaki name gave the local name Cape Newagen.
Voter Registration
Active voters, Secretary of State file of March 7, 2026Current enrollment
Registration history
Recent General Election Results
Referendums
YesNoSouthport’s vote. Click a question for the statewide comparison.How Southport Compares
Presidential margin vs. Maine
Democratic minus Republican share of the candidate vote. The gap between the lines shows how differently Southport 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 2020–2024Southport at a Glance
Southport is a town in Lincoln County, Maine, incorporated in 1842 as Townsend. It has an estimated 634 residents (2025), compared with 622 in the 2020 Census.
It is part of Congressional District 1, State Senate District 13, State House District 48, and County Commissioner District 1, in the Midcoast region.
In the 2024 presidential race, Kamala Harris carried Southport with 64.7% to 34.4% for Donald Trump. That was a Democratic margin of 30.3 points, against a Democratic margin of 6.9 points statewide. In the 2022 governor’s race, Janet Mills carried Southport with 60.7% to 38.6% for Paul LePage. In the 2024 U.S. Senate race, Angus King (Unenrolled) carried Southport with 67.7% to 24.8% for Demi Kouzounas. On the Partisan Electoral Alignment Index (Partisan EAI), it ranks as the 71st most Democratic of 504 towns.
As of March 7, 2026, Southport had 508 active registered voters: 37.4% Democrats, 32.5% Republicans, 27.8% unenrolled, and 2% Green Independents. The median household income is $89,000 and the median home value $495,800, against $74,733 and $296,600 statewide.
Below the summary figures, this page has election results back to 1868 (with county figures from 1821), voter registration since 1954, 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.