Delaware 31st State House District, Delaware: Bellwether district. In 2024, voted D+2%. Republican peak: R+29 in 1984.
Key facts
- 2024 presidential margin
- D+2MIT Election Lab
- Political archetype
- BellwetherAkashic typology
- Population
- 4,0412024 5-year
- Median household income
- $74,4772024 5-year
- White (non-Hispanic)
- 58.1%2024 5-year
- Black
- 27.0%2024 5-year
- Hispanic / Latino
- 8.1%2024 5-year
- Peak Democratic margin
- D+18 in 1964MIT Election Lab
- Peak Republican margin
- R+29 in 1984MIT Election Lab
Constituent county margins for State Representative District 31, DEOne cell per constituent county, colored by 2024 presidential margin from deep red (Republican) through neutral to deep blue (Democratic), ordered bluest first.
R+60D+60
One cell per constituent county. Ordered by 2024 D-vs-R margin (bluest first). Hover for county-level numbers.
38 presidential elections
| Year | Won | Margin | Democratic | Republican | Total |
|---|---|---|---|---|---|
| D | 952 | 914 | 1,894 | ||
| D | 960 | 883 | 1,875 | ||
| R | 718 | 797 | 1,600 | ||
| D | 765 | 692 | 1,479 | ||
| D | 784 | 643 | 1,442 | ||
| R | 514 | 680 | 1,206 | ||
| R | 491 | 519 | 1,039 | ||
| D | 395 | 343 | 846 | ||
| R | 331 | 335 | 867 | ||
| R | 280 | 429 | 713 | ||
| R | 254 | 464 | 720 | ||
| R | 278 | 321 | 643 | ||
| D | 356 | 272 | 634 | ||
| R | 225 | 382 | 615 | ||
| R | 195 | 239 | 536 | ||
| D | 280 | 194 | 475 | ||
| D | 232 | 230 | 466 | ||
| R | 201 | 222 | 425 | ||
| R | 213 | 219 | 433 | ||
| R | 176 | 183 | 362 | ||
| D | 170 | 152 | 324 | ||
| D | 199 | 174 | 373 | ||
| D | 207 | 159 | 366 | ||
| D | 190 | 142 | 334 | ||
| R | 123 | 180 | 304 | ||
| O | 149 | 149 | 302 | ||
| D | 155 | 140 | 299 | ||
| D | 91 | 82 | 174 | ||
| D | 88 | 69 | 171 | ||
| R | 88 | 90 | 180 | ||
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Demographics
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
12.2%
German
11.2%
English
9.4%
American
6.2%
Italian
5.7%
Polish
2.6%
Scottish
1.4%
Source · American Community Survey 5-year estimates, 2024 release. Hispanic/Latino is an ethnicity that overlaps the race categories, so these shares can total more than 100%. Ancestry is a self-reported, multiple-response item; ancestry percentages do not sum to the parent race percentage.
Age distribution by sex
Median age: 38.8 in this county, 39.1 nationally
Male
Age
Female
85+
75–84
65–74
55–64
45–54
35–44
25–34
18–24
5–17
<5
Source · American Community Survey 5-year estimates, 2024 release.
Median household income
2024 inflation-adjusted dollars
$74,477
State Representative District 31 ranks near the middle of US counties.
State Representative District 31$74,477
Delaware$84,954
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
Poverty rate
All persons below federal poverty line
10.6%
Child poverty is below the national average.
Children under 1814.8%
Working age (18–64)9.5%
Seniors (65+)8.6%
Source · American Community Survey 5-year estimates, 2024 release.
Language at home
Population aged 5 and older
88.6%
speak English only
Spanish4.8%
Other Indo-European3.8%
Other languages1.4%
Asian & Pacific Islander1.3%
Source · ACS 5-year estimates, 2024.
Religious adherents
Adherents per capita by tradition
Source · 2020 US Religion Census. Remaining 68.5% of residents not counted as adherents by any reporting body.
With a 2024 presidential margin of D+39.5, this Wilmington-area district ranks among the most reliably blue constituencies in the state, reflecting the dense urban core and majority-minority demographics common to Delaware's First State capital region.
The Democratic margin in Delaware 31st State House District has rarely exceeded eighteen points in modern history; the Republican margin has rarely exceeded twenty-nine points. 2024 delivered the district to the Democratic candidate by two points.
Its demographics resemble the country more than they resemble most districts. A 58% non-Hispanic-white share, a 11% poverty rate, and a median household income of $74,477 — all within the broad national range.
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 →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
State Representative District 31, Delaware. Akashic. https://akashic.app/sld-lower/10031/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Frequently asked questions
How did State Representative District 31, Delaware vote in 2024?
In 2024, State Representative District 31, Delaware voted Democratic by 2.0 points (D+2), carried by the Democratic candidate. Out of 1,894 votes cast, 952 went Democratic and 914 went Republican.
What is State Representative District 31, Delaware's political archetype?
Akashic classifies State Representative District 31, Delaware as a "Bellwether" district based on its long-arc presidential voting pattern. Across 38 elections in the dataset, the district has voted Democratic 15 times, Republican 14 times, and other 1 times.
When did State Representative District 31, Delaware last vote Republican?
The most recent presidential election in which State Representative District 31, Delaware voted Republican was 2016.
How many people live in State Representative District 31, Delaware?
State Representative District 31, Delaware has a population of 4,041 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in State Representative District 31, Delaware?
Median household income in State Representative District 31, Delaware is $74,477 — below the national median of $80,734. The Delaware state median is $84,954.
What is the political history of State Representative District 31, Delaware?
Akashic tracks 38 presidential elections in State Representative District 31, Delaware from 1876 to 2024. Of those, 15 went Democratic and 14 went Republican. The district's archetype — "Bellwether" — captures the overall trajectory of that voting record.