Addison
Incorporated 1797Named for the English essayist Joseph Addison. Before incorporation it was Plantation No. 6 west of Machias.
Voter Registration
Active voters, Secretary of State file of March 7, 2026Current enrollment
Registration history
Recent General Election Results
Referendums
YesNoAddison’s vote. Click a question for the statewide comparison.How Addison Compares
Presidential margin vs. Maine
Democratic minus Republican share of the candidate vote. The gap between the lines shows how differently Addison 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 2020–2024Addison at a Glance
Addison is a town in Washington County, Maine, incorporated in 1797. It has an estimated 1,193 residents (2025), compared with 1,148 in the 2020 Census.
It is part of Congressional District 2, State Senate District 6, State House District 11, and County Commissioner District 3, in the Downeast region.
In the 2024 presidential race, Donald Trump carried Addison with 65.5% to 33.7% for Kamala Harris. That was a Republican margin of 31.8 points, against a Democratic margin of 6.9 points statewide. In the 2022 governor’s race, Paul LePage carried Addison with 62.7% to 33.9% for Janet Mills. In the 2024 U.S. Senate race, Demi Kouzounas carried Addison with 51.6% to 40.7% for Angus King (Unenrolled). On the Partisan Electoral Alignment Index (Partisan EAI), it ranks as the 154th most Republican of 504 towns.
As of March 7, 2026, Addison had 810 active registered voters: 24.2% Democrats, 46.3% Republicans, 26.9% unenrolled, and 2.1% Green Independents. The median household income is $50,524 and the median home value $163,500, 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.