- Lead
- 33,958
- Total
- 68,726
- vs nation
- D+50.9
Maryland 13th State Senate District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 36,794
- Total
- 68,719
- vs nation
- D+49.1
- Lead
- 29,646
- Total
- 63,608
- vs nation
- D+44.5
- Lead
- 21,446
- Total
- 60,160
- vs nation
- D+31.8
- Lead
- 20,336
- Total
- 57,050
- vs nation
- D+28.4
- Lead
- 12,413
- Total
- 51,568
- vs nation
- D+26.5
- Lead
- 9,628
- Total
- 43,388
- vs nation
- D+21.7
- Lead
- 7,675
- Total
- 36,784
- vs nation
- D+12.3
Key facts
- 2024 presidential margin
- D+49.4MIT Election Lab
- Population
- 131,6702024 5-year
- Population density
- 1,971 / sq mi2024 5-year · TIGER/Line
- Land area
- 66.8 sq miTIGER/Line
- Median household income
- $137,8642024 5-year
- White (non-Hispanic)
- 40.1%2024 5-year
- Black
- 26.2%2024 5-year
- Hispanic / Latino
- 11.3%2024 5-year
- Peak Democratic margin
- D+53.5 in 2020MIT Election Lab
- Peak Republican margin
- R+13.9 in 1956MIT Election Lab
- Most similar
- State Senate District 12, MD · twin score 98.3
presidential history
Party record book
Maryland 13th 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
Joe Biden2020
75.4%
51,799 votes · D+53.5 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 73.6%
Republican
Dwight D. Eisenhower1956
56.9%
2,096 votes · R+13.9 · modeled estimate
Runner-up · Richard Nixon, 1972 · 56.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
51,799votes
75.4% of the vote · D+53.5 · modeled estimate
Runner-up · Kamala Harris, 2024 · 49,813 votes
Republican
George W. Bush2004
19,226votes
37.3% of the vote · D+24.1 · modeled estimate
Runner-up · Mitt Romney, 2012 · 18,583 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
+55.4pts D vs U.S.
Place D+30.2 · U.S. R+25.2 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +55.3 pts
Republican
Richard Nixon1968
+9.4pts R vs U.S.
Place R+10.1 · U.S. R+0.7 · modeled estimate
Runner-up · Dwight D. Eisenhower, 1956 · −1.5 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.
District 13 backed the 2024 Republican presidential nominee by nearly 25 points, a margin that stands well outside the norm in a state that routinely delivers double-digit Democratic advantages statewide.
Across the recorded series it reached a Democratic high of 53.5 points in 2020 and a Republican high of 13.9 points in 1956. Between 2020 and 2024 the district moved 4.1 points toward the Republican candidate; the 2024 margin was 49.4 points.
A population of 131,670, a 40% non-Hispanic-white share, and a median household income of $137,864 describe the district. The district's voting pattern over the last decade is most similar to that of State Senate District 12 and State Senate District 34.
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 →
Maryland 13th State Senate District. Akashic. https://akashic.app/sld-upper/24013/. Accessed May 20, 2026. License: CC BY 4.0.