Maine 21st State Senate District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1892–2024 (partial returns from 1876) · 38 presidential cycles · 38 with a vote-share denominator · 34 with a national benchmark
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Lyndon B. Johnson1964
84.6%
10,734 votes · D+69.3 · modeled estimate
Runner-up · Hubert Humphrey, 1968 · 77.1%
Republican
William McKinley1896
59.6%
1,444 votes · R+25.2 · modeled estimate
Runner-up · Theodore Roosevelt, 1904 · 54.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
11,080votes
64.0% of the vote · D+30.0 · modeled estimate
Runner-up · John Kerry, 2004 · 10,883 votes
Republican
Donald Trump2024
7,427votes
44.7% of the vote · D+8.1 · modeled estimate
Runner-up · Donald Trump, 2016 · 7,332 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Hubert Humphrey1968
+56.1pts D vs U.S.
Place D+55.4 · U.S. R+0.7 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · +46.7 pts
Republican
William McKinley1896
+19.1pts R vs U.S.
Place R+25.2 · U.S. R+6.1 · modeled estimate
Runner-up · Benjamin Harrison, 1892 · −2.9 pts
current representation
Current officeholders
DPeggy RotundoState Senate · 21
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 1 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each row is a county-allocated estimate of U.S. House votes for this district — county returns apportioned onto its boundary, not precinct-counted. “Vote lead” is the estimated local lead here, not necessarily the winner of the full contest.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
53.4%10,113
46.6%8,815
18,928
Maine 21st State Senate District sits in New England. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 69.3 points in 1964 and a Republican high of 25.2 points in 1896. Between 2020 and 2024 the district moved 5.5 points toward the Republican candidate; the 2024 margin was 8.1 points.
A population of 37,121, a 77% non-Hispanic-white share, and a median household income of $55,393 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 16 and Franklin Senatorial District.
Akashic
Political twins — state-senate districts
The state-senate districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Maine 21st State Senate District. Akashic. https://akashic.app/sld-upper/23021/. Accessed May 20, 2026. License: CC BY 4.0.
How did Maine 21st State Senate District vote in 2024?
In 2024, Maine 21st State Senate District voted Democratic by 8.1 points (D+8.1), carried by the Democratic candidate. Out of 16,597 votes cast, 8,777 went Democratic and 7,427 went Republican.
When did Maine 21st State Senate District last vote Republican?
The most recent presidential election in which Maine 21st State Senate District voted Republican was 1924.
How many people live in Maine 21st State Senate District?
Maine 21st State Senate District has a population of 37,121 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Maine 21st State Senate District?
Median household income in Maine 21st State Senate District is $55,393 — below the national median of $80,734. The Maine state median is $74,733.
What is the political history of Maine 21st State Senate District?
Akashic tracks 38 presidential elections in Maine 21st State Senate District from 1876 to 2024. Of those, 31 went Democratic and 7 went Republican.