- Lead
- 320
- Total
- 22,441
- vs nation
- D+2.9
Maine 20th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 670
- Total
- 22,165
- vs nation
- R+1.4
- Lead
- 954
- Total
- 20,578
- vs nation
- R+6.7
- Lead
- 2,755
- Total
- 19,766
- vs nation
- D+10.1
- Lead
- 3,403
- Total
- 20,342
- vs nation
- D+9.5
- Lead
- 2,299
- Total
- 20,830
- vs nation
- D+13.5
- Lead
- 2,124
- Total
- 18,445
- vs nation
- D+11.0
- Lead
- 4,916
- Total
- 17,503
- vs nation
- D+19.6
Key facts
- 2024 presidential margin
- D+1.4MIT Election Lab
- Population
- 39,8162024 5-year
- Population density
- 213 / sq mi2024 5-year · TIGER/Line
- Land area
- 187 sq miTIGER/Line
- Median household income
- $77,3592024 5-year
- White (non-Hispanic)
- 89.5%2024 5-year
- Black
- 2.8%2024 5-year
- Hispanic / Latino
- 2.0%2024 5-year
- Peak Democratic margin
- D+58.1 in 1964MIT Election Lab
- Peak Republican margin
- R+37.9 in 1896MIT Election Lab
- Most similar
- State Senate District 15, ME · twin score 96.7
presidential history
Party record book
Maine 20th 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
79.0%
10,649 votes · D+58.1 · modeled estimate
Runner-up · Hubert Humphrey, 1968 · 69.3%
Republican
William McKinley1896
65.5%
1,954 votes · R+37.9 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 61.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
11,649votes
57.3% of the vote · D+16.7 · modeled estimate
Runner-up · John Kerry, 2004 · 11,352 votes
Republican
Donald Trump2024
10,812votes
48.2% of the vote · D+1.4 · modeled estimate
Runner-up · Donald Trump, 2020 · 10,393 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
+41.0pts D vs U.S.
Place D+40.3 · U.S. R+0.7 · modeled estimate
Runner-up · Lyndon B. Johnson, 1964 · +35.5 pts
Republican
William McKinley1896
+31.9pts R vs U.S.
Place R+37.9 · U.S. R+6.1 · modeled estimate
Runner-up · Benjamin Harrison, 1892 · +10.8 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.
| Year | Vote lead | Democratic | Republican | Total |
|---|---|---|---|---|
| 2024 | D | 53.4%9,301 | 46.6%8,107 | 17,408 |
Maine 20th State Senate District sits in New England. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 58.1 points in 1964 and a Republican high of 37.9 points in 1896. Between 2020 and 2024 the district moved 1.6 points toward the Republican candidate; the 2024 margin was 1.4 points.
A population of 39,816, a 90% non-Hispanic-white share, and a median household income of $77,359 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 15 and State Senate District 16.
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.
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 20th State Senate District. Akashic. https://akashic.app/sld-upper/23020/. Accessed May 20, 2026. License: CC BY 4.0.