Delaware 18th 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
73.0%
7,180 votes · D+47.3 · modeled estimate
Runner-up · Joe Biden, 2020 · 71.9%
Republican
Herbert Hoover1928
63.7%
1,616 votes · R+28.2 · modeled estimate
Runner-up · Calvin Coolidge, 1924 · 57.6%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
7,774votes
71.9% of the vote · D+45.2 · modeled estimate
Runner-up · Barack Obama, 2008 · 7,180 votes
Republican
Ronald Reagan1984
3,475votes
53.0% of the vote · R+6.4 · modeled estimate
Runner-up · Richard Nixon, 1972 · 3,420 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+40.3 · U.S. R+1.5 · modeled estimate
Runner-up · Joe Biden, 2020 · +40.8 pts
Republican
Herbert Hoover1932
+19.0pts R vs U.S.
Place R+1.2 · U.S. D+17.8 · modeled estimate
Runner-up · Herbert Hoover, 1928 · +10.7 pts
current representation
Current officeholders
DSophie PhillipsState House · 18
State legislative officeholder from OpenStates nightly current-legislator data.
U.S. House elections · 3 House
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.
Source · Akashic county-allocated estimate from certified county returns, House; not precinct-counted.
Year
Vote lead
Democratic
Republican
Total
2024
D
66.5%7,536
33.5%3,804
11,340
2020
D
66.1%7,528
31.7%3,611
11,386
2018
D
72.8%6,366
27.2%2,383
8,749
With a 2024 presidential margin of D+40.2, this Wilmington-area district ranks among the most reliably blue seats in the state, reflecting a dense urban core where Democratic candidates consistently run well ahead of statewide averages.
Across the recorded series it reached a Democratic high of 47.3 points in 2008 and a Republican high of 28.2 points in 1928. Between 2020 and 2024 the district moved 4.9 points toward the Republican candidate; the 2024 margin was 40.3 points.
A population of 24,505, a 44% non-Hispanic-white share, and a median household income of $78,279 describe the district. The district's voting pattern over the last decade is most similar to that of State Representative District 26 and State Representative District 7.
Akashic
Political twins — state-house districts
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.
Compare two places, side by side
Twelve curated comparisons line up election history, demographics, and the divergence story for two places at a glance. Browse all comparisons → · Or open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Delaware 18th State House District. Akashic. https://akashic.app/sld-lower/10018/. Accessed May 20, 2026. License: CC BY 4.0.
How did Delaware 18th State House District vote in 2024?
In 2024, Delaware 18th State House District voted Democratic by 40.3 points (D+40.3), carried by the Democratic candidate. Out of 10,150 votes cast, 7,054 went Democratic and 2,962 went Republican.
When did Delaware 18th State House District last vote Republican?
The most recent presidential election in which Delaware 18th State House District voted Republican was 1984.
How many people live in Delaware 18th State House District?
Delaware 18th State House District has a population of 24,505 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Delaware 18th State House District?
Median household income in Delaware 18th State House District is $78,279 — below the national median of $80,734. The Delaware state median is $84,954.
What is the political history of Delaware 18th State House District?
Akashic tracks 38 presidential elections in Delaware 18th State House District from 1876 to 2024. Of those, 28 went Democratic and 10 went Republican.