Maine Political Data Explorer

Understand Mainefrom 1820 to today

Explore more than 200 years of Maine’s political culture and how it has changed, from statewide races down to every town, county and legislative district.

Political Unit Search

Maine Voter Registration

Party registrations (enrollments) of active voters, Maine Secretary of State file of March 7, 2026.

Explore Maine’s Political Culture and History

Pick a place to start. Every section draws on the same official records — election returns back to 1820, party enrollment back to 1954 and the Census — for every town, county and district in Maine.

Political Unit DataEvery town, county, region and legislative district in Maine has its own profile: election results going back generations, party enrollment over time, Census figures, partisan ratings and the people who represent it today.Explore Political Units Election ResultsEvery Maine election since 1820 — Governor, Congress, the Legislature and every ballot question — mapped by town, county and district, with primaries, swings from one election to the next and the full results behind each race.Explore Elections Campaign FinanceWho raised and spent what in Maine’s races, from 1980 to the 2026 ballot.Explore Campaign Finance Voter RegistrationParty enrollment in every town since 1954, mapped and charted over time.Explore Registration Historical PollingMaine polls over the years, set against how the votes actually came in.Explore Polling Demographic DataCensus figures for every town and district, and how places compare.Explore Demographics HistoricalSenators, Representatives, Governors, the Legislature and the high court since 1820.Explore History InsightsPut the data side by side to answer your own questions about Maine politics.Explore Insights

Current Political Representation

Who speaks for Maine today: the state’s two U.S. Senators and two members of Congress, the Governor and the officers elected in Augusta, and the party make-up of the Maine Senate and House, as of the latest roster.

The Attorney General, Secretary of State, Treasurer and Auditor are elected by the Legislature.

Legislative seats are counted from the officeholders table (members serving as of September 30, 2026). Sources: Maine Secretary of State; Maine Legislature.

Maine Election Results

General elections 1820–2024, primaries to June 2026 and every statewide ballot question since 1940.

Year

Election

Office

Map by

Towns

Voter Registration Over Time

Place

Timeframe

Each line is a party’s share of all registered voters (party enrollment), from one Secretary of State file per year (the November file where there is one). From 2007 on the counts are active voters; earlier files don’t state voter status. Before 1984 the files on hand are from 1954–1970 and 1974–1982 (even years); the lines connect the files on hand. The 1954–1970 unenrolled share is derived. Minor parties appear only in years they were ballot-qualified. Congressional districts use today’s town lines.

Explore by Political Unit

Pick a map, then click any place to open its profile

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Explore our data sources and methods

Every figure on this site comes from an official record — the Secretary of State’s returns and voter files, the State Archives’ tabulation books, the Census Bureau — and is traced to its source. See where each number comes from and how the ratings are calculated.

Read our source guide →How the ratings work →

Sources for this page

Voter registration: Maine Secretary of State active-voter file of March 7, 2026 (Maine Political Data registration v7.2).
Population: Census Bureau Vintage 2025 estimates. 2024 President: Maine Secretary of State tabulations, first choices (Maine Political Data election results v3.18).
Current officeholders: Maine Political Data officeholders table (the Legislature’s, Secretary of State’s and Congress’s rosters), checked weekly.