- Lead
- 9,706
- Total
- 24,041
- vs nation
- D+41.8
Maryland State Legislative Subdistrict 9B
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 10,116
- Total
- 23,575
- vs nation
- D+38.5
- Lead
- 6,236
- Total
- 17,668
- vs nation
- D+33.2
- Lead
- 3,847
- Total
- 17,008
- vs nation
- D+18.8
- Lead
- 3,630
- Total
- 16,138
- vs nation
- D+15.2
- Lead
- 1,511
- Total
- 14,848
- vs nation
- D+12.6
- Lead
- 1,062
- Total
- 12,529
- vs nation
- D+8.0
- Lead
- 811
- Total
- 10,624
- vs nation
- R+0.9
Key facts
- 2024 presidential margin
- D+40.4MIT Election Lab
- Population
- 44,6882024 5-year
- Population density
- 2,246 / sq mi2024 5-year · TIGER/Line
- Land area
- 19.9 sq miTIGER/Line
- Median household income
- $157,7402024 5-year
- White (non-Hispanic)
- 46.9%2024 5-year
- Black
- 10.3%2024 5-year
- Hispanic / Latino
- 5.0%2024 5-year
- Peak Democratic margin
- D+42.9 in 2020MIT Election Lab
- Peak Republican margin
- R+28.0 in 1972MIT Election Lab
- Most similar
- State House District 12, VA · twin score 96.8
presidential history
Party record book
Maryland State Legislative Subdistrict 9B · 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
70.0%
16,511 votes · D+42.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 67.7%
Republican
Dwight D. Eisenhower1956
64.0%
716 votes · R+28.0 · modeled estimate
Runner-up · Richard Nixon, 1972 · 63.3%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
16,511votes
70.0% of the vote · D+42.9 · modeled estimate
Runner-up · Kamala Harris, 2024 · 16,269 votes
Republican
Donald Trump2024
6,563votes
27.3% of the vote · D+40.4 · modeled estimate
Runner-up · George W. Bush, 2004 · 6,561 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
Kamala Harris2024
+41.8pts D vs U.S.
Place D+40.4 · U.S. R+1.5 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +40.6 pts
Republican
Richard Nixon1968
+21.4pts R vs U.S.
Place R+22.1 · U.S. R+0.7 · modeled estimate
Runner-up · Richard Nixon, 1960 · +13.1 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.
Maryland State Legislative Subdistrict 9B sits in the Mid-Atlantic. In 2024 it voted Democratic.
Across the recorded series it reached a Democratic high of 42.9 points in 2020 and a Republican high of 28.0 points in 1972. Between 2020 and 2024 the district moved 2.5 points toward the Republican candidate; the 2024 margin was 40.4 points.
A population of 44,688, a 47% non-Hispanic-white share, and a median household income of $157,740 describe the district. The district's voting pattern over the last decade is most similar to that of State House District 12 and Legislative (House) District 41.
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 State Legislative Subdistrict 9B. Akashic. https://akashic.app/sld-lower/2409B/. Accessed May 20, 2026. License: CC BY 4.0.