Waterboro
Incorporated 1787 as WaterboroughNamed for Col. Joshua Waters, a proprietor. Earlier Massabesic Plantation; the spelling Waterborough was formally shortened in 1895.
Voter Registration
Active voters, Secretary of State file of March 7, 2026Current enrollment
Registration history
Recent General Election Results
Referendums
YesNoWaterboro’s vote. Click a question for the statewide comparison.How Waterboro Compares
Presidential margin vs. Maine
Democratic minus Republican share of the candidate vote. The gap between the lines shows how differently Waterboro 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 2020–2024Waterboro at a Glance
Waterboro is a town in York County, Maine, incorporated in 1787 as Waterborough. It has an estimated 8,219 residents (2025), compared with 7,936 in the 2020 Census.
It is part of Congressional District 1, State Senate District 33, State House District 139 (52% of residents), State House District 136 (48% of residents), and County Commissioner District 4, in the Western Maine region.
In the 2024 presidential race, Donald Trump carried Waterboro with 57.1% to 41.5% for Kamala Harris. That was a Republican margin of 15.6 points, against a Democratic margin of 6.9 points statewide. In the 2022 governor’s race, Paul LePage carried Waterboro with 54% to 44.1% for Janet Mills. In the 2024 U.S. Senate race, Demi Kouzounas carried Waterboro with 45.2% to 44% for Angus King (Unenrolled). On the Partisan Electoral Alignment Index (Partisan EAI), it ranks as the 241st most Republican of 504 towns.
As of March 7, 2026, Waterboro had 5,042 active registered voters: 24.9% Democrats, 37.9% Republicans, 32.5% unenrolled, and 4.2% Green Independents. The median household income is $89,392 and the median home value $297,000, 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.