- Lead
- 8,357
- Total
- 10,759
- vs nation
- D+79.1
Delaware 1st State House District
President margin by year
Place winner margin
President results by year
Modeled candidate-vote estimate on current district boundaries
- Lead
- 9,556
- Total
- 11,967
- vs nation
- D+75.4
- Lead
- 8,696
- Total
- 11,486
- vs nation
- D+73.6
- Lead
- 9,012
- Total
- 11,481
- vs nation
- D+74.6
- Lead
- 9,773
- Total
- 12,027
- vs nation
- D+74.0
- Lead
- 7,607
- Total
- 10,217
- vs nation
- D+76.9
- Lead
- 6,609
- Total
- 9,172
- vs nation
- D+71.5
- Lead
- 5,149
- Total
- 7,568
- vs nation
- D+59.5
Key facts
- 2024 presidential margin
- D+77.7MIT Election Lab
- Population
- 23,0662024 5-year
- Population density
- 9,611 / sq mi2024 5-year · TIGER/Line
- Land area
- 2.4 sq miTIGER/Line
- Median household income
- $57,3902024 5-year
- White (non-Hispanic)
- 27.6%2024 5-year
- Black
- 60.4%2024 5-year
- Hispanic / Latino
- 5.8%2024 5-year
- Peak Democratic margin
- D+81.3 in 2008MIT Election Lab
- Most similar
- State Representative District 2, DE · twin score 98.2
presidential history
Party record book
Delaware 1st 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
Barack Obama2008
90.3%
10,863 votes · D+81.3 · modeled estimate
Runner-up · Grover Cleveland, 1888 · 89.9%
Republican
Herbert Hoover1928
34.1%
712 votes · D+31.4 · modeled estimate
Runner-up · Warren G. Harding, 1920 · 27.2%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Barack Obama2008
10,863votes
90.3% of the vote · D+81.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 10,687 votes
Republican
Ronald Reagan1984
1,404votes
23.2% of the vote · D+53.4 · modeled estimate
Runner-up · Richard Nixon, 1972 · 1,390 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
+79.1pts D vs U.S.
Place D+77.7 · U.S. R+1.5 · modeled estimate
Runner-up · Alton B. Parker, 1904 · +77.6 pts
Republican
Herbert Hoover1932
−35.3pts R vs U.S.
Place D+53.1 · U.S. D+17.8 · modeled estimate
Runner-up · William H. Taft, 1912 · −40.8 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.
Anchoring the northern tip of New Castle County, this district's 2-point Democratic presidential lean makes it a bellwether for statewide shifts in Delaware's densest population corridor.
Across the recorded series it reached a Democratic high of 81.3 points in 2008. Between 2020 and 2024 the district moved 2.2 points toward the Republican candidate; the 2024 margin was 77.7 points.
A population of 23,066, a 28% non-Hispanic-white share, and a median household income of $57,390 describe the district. The district's voting pattern over the last decade is most similar to that of State Representative District 2 and State House District 99.
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 →
Delaware 1st State House District. Akashic. https://akashic.app/sld-lower/10001/. Accessed May 20, 2026. License: CC BY 4.0.