- Lead
- 39,562
- Total
- 56,164
- vs nation
- D+71.9
Maryland 20th State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 46,682
- Total
- 59,043
- vs nation
- D+74.6
- Lead
- 38,670
- Total
- 49,257
- vs nation
- D+76.4
- Lead
- 33,037
- Total
- 45,673
- vs nation
- D+68.5
- Lead
- 32,176
- Total
- 44,135
- vs nation
- D+65.6
- Lead
- 26,350
- Total
- 40,058
- vs nation
- D+68.2
- Lead
- 22,033
- Total
- 35,088
- vs nation
- D+62.3
- Lead
- 18,236
- Total
- 31,315
- vs nation
- D+49.7
Key facts
- 2024 presidential margin
- D+70.4MIT Election Lab
- Population
- 130,1612024 5-year
- Population density
- 6,851 / sq mi2024 5-year · TIGER/Line
- Land area
- 19 sq miTIGER/Line
- Median household income
- $106,0012024 5-year
- White (non-Hispanic)
- 30.6%2024 5-year
- Black
- 32.3%2024 5-year
- Hispanic / Latino
- 24.3%2024 5-year
- Peak Democratic margin
- D+79.1 in 2020MIT Election Lab
- Most similar
- State Legislative District 18, MD · twin score 95.4
presidential history
Party record book
Maryland 20th 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
Joe Biden2020
88.6%
52,341 votes · D+79.1 · modeled estimate
Runner-up · Hillary Clinton, 2016 · 87.6%
Republican
Thomas E. Dewey1948
39.8%
1,187 votes · D+18.2 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1952 · 39.5%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
52,341votes
88.6% of the vote · D+79.1 · modeled estimate
Runner-up · Kamala Harris, 2024 · 46,897 votes
Republican
George H. W. Bush1988
7,491votes
27.2% of the vote · D+45.2 · modeled estimate
Runner-up · Donald Trump, 2024 · 7,335 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
John W. Davis1924
+80.8pts D vs U.S.
Place D+55.7 · U.S. R+25.2 · modeled estimate
Runner-up · James M. Cox, 1920 · +79.8 pts
Republican
Thomas E. Dewey1948
−13.8pts R vs U.S.
Place D+18.2 · U.S. D+4.5 · modeled estimate
Runner-up · Thomas E. Dewey, 1944 · −26.6 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 a 2024 presidential margin of D+71, this district ranks among the most lopsided in the state, reflecting a dense, heavily urban electorate where competitive general elections are effectively nonexistent.
Across the recorded series it reached a Democratic high of 79.1 points in 2020. Between 2020 and 2024 the district moved 8.6 points toward the Republican candidate; the 2024 margin was 70.4 points.
A population of 130,161, a 31% non-Hispanic-white share, and a median household income of $106,001 describe the district. The district's voting pattern over the last decade is most similar to that of State Legislative District 18 and Assembly District 69.
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 →
Maryland 20th State House District. Akashic. https://akashic.app/sld-lower/24020/. Accessed May 20, 2026. License: CC BY 4.0.