- Lead
- 600
- Total
- 5,449
- vs nation
- R+9.5
Maine 66th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 477
- Total
- 5,300
- vs nation
- R+13.5
- Lead
- 506
- Total
- 4,967
- vs nation
- R+12.3
- Lead
- 405
- Total
- 4,713
- vs nation
- D+4.7
- Lead
- 520
- Total
- 4,894
- vs nation
- D+3.4
- Lead
- 281
- Total
- 5,019
- vs nation
- D+8.1
- Lead
- 381
- Total
- 4,445
- vs nation
- D+8.1
- Lead
- 1,055
- Total
- 4,255
- vs nation
- D+16.3
Key facts
- 2024 presidential margin
- R+11.0MIT Election Lab
- Population
- 8,7472024 5-year
- Population density
- 82 / sq mi2024 5-year · TIGER/Line
- Land area
- 107 sq miTIGER/Line
- Median household income
- $78,8212024 5-year
- White (non-Hispanic)
- 93.0%2024 5-year
- Black
- 0.4%2024 5-year
- Hispanic / Latino
- 1.5%2024 5-year
- Peak Democratic margin
- D+37.7 in 1964MIT Election Lab
- Peak Republican margin
- R+51.7 in 1924MIT Election Lab
- Most similar
- State House District 67, ME · twin score 97.2
presidential history
Party record book
Maine 66th State House 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
68.9%
1,885 votes · D+37.7 · modeled estimate
Runner-up · Hubert Humphrey, 1968 · 56.2%
Republican
Calvin Coolidge1924
73.0%
1,069 votes · R+51.7 · modeled estimate
Runner-up · William McKinley, 1896 · 71.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
2,660votes
54.4% of the vote · D+10.6 · modeled estimate
Runner-up · John Kerry, 2004 · 2,592 votes
Republican
Donald Trump2024
2,966votes
54.4% of the vote · R+11.0 · modeled estimate
Runner-up · Donald Trump, 2020 · 2,820 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
Bill Clinton1996
+16.3pts D vs U.S.
Place D+24.8 · U.S. D+8.5 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · +15.2 pts
Republican
Alf Landon1936
+40.6pts R vs U.S.
Place R+16.3 · U.S. D+24.3 · modeled estimate
Runner-up · William McKinley, 1896 · +40.0 pts
Current officeholders
State legislative officeholder from OpenStates nightly current-legislator data.
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.
With fewer than 9,000 residents, this sparsely populated district reflects the broader rural-to-Republican shift that has reshaped Maine's interior over the past decade, delivering double-digit margins in the most recent presidential contest.
Across the recorded series it reached a Democratic high of 37.7 points in 1964 and a Republican high of 51.7 points in 1924. Between 2020 and 2024 the district moved 2.0 points toward the Republican candidate; the 2024 margin was 11.0 points.
A population of 8,747, a 93% non-Hispanic-white share, and a median household income of $78,821 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 67 and State House District 53.
The state-house 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.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Maine 66th State House District. Akashic. https://akashic.app/sld-lower/23066/. Accessed May 20, 2026. License: CC BY 4.0.