Waltham
Incorporated 1833Voter Registration
Active voters, Secretary of State file of March 7, 2026Current enrollment
Registration history
Recent General Election Results
Referendums
YesNoWaltham’s vote. Click a question for the statewide comparison.How Waltham Compares
Presidential margin vs. Maine
Democratic minus Republican share of the candidate vote. The gap between the lines shows how differently Waltham 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 2020–2024Waltham at a Glance
Waltham is a town in Hancock County, Maine, incorporated in 1833. It has an estimated 344 residents (2025), compared with 332 in the 2020 Census.
It is part of Congressional District 2, State Senate District 6, State House District 13, and County Commissioner District 1, in the Downeast region.
In the 2024 presidential race, Donald Trump carried Waltham with 73.7% to 25.1% for Kamala Harris. That was a Republican margin of 48.6 points, against a Democratic margin of 6.9 points statewide. In the 2022 governor’s race, Paul LePage carried Waltham with 67.1% to 32.4% for Janet Mills. In the 2024 U.S. Senate race, Demi Kouzounas carried Waltham with 53.4% to 37.3% for Angus King (Unenrolled). On the Partisan Electoral Alignment Index (Partisan EAI), it ranks as the 57th most Republican of 504 towns.
As of March 7, 2026, Waltham had 284 active registered voters: 17.3% Democrats, 54.6% Republicans, 25% unenrolled, and 2.8% Green Independents. The median household income is $71,071 and the median home value $181,300, 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.