akashic
1876–2024
Seaford, DE·Delaware

Seaford, DE has voted Republican in seven straight presidential elections — R+11 in 2024.

1876 — 2024·38 elections
DE
LatestR+11in 2024
TypologyRealigning Affluent Suburbcluster typology
Population255,6262024 ACS

Seaford, DE, Delaware: Realigning Affluent Suburb metro. In 2024, voted R+11%. Republican peak: R+35 in 1984.

Key facts

2024 presidential margin
R+11MIT Election Lab
Political typology
Realigning Affluent SuburbAkashic typology
Population
255,6262024 5-year
Median household income
$81,4972024 5-year
White (non-Hispanic)
74.1%2024 5-year
Black
9.9%2024 5-year
Hispanic / Latino
11.5%2024 5-year
Peak Democratic margin
D+19 in 1884MIT Election Lab
Peak Republican margin
R+35 in 1984MIT Election Lab
2024 presidential election
Seaford, DE
TrumpR+11
—
How it voted
Share of the 2024 vote
Donald Trump ✓Republican55.0%80,984
Kamala HarrisDemocratic44.0%64,817
OtherAll other candidates1.0%1,544
D+60
R+60
1 counties, each filled by 2024 D-vs-R margin.
presidential history
Presidential margin, 1876–2024
Democratic minus Republican, by election
Presidential margin over timeDemocratic-minus-Republican presidential margin from 1876 to 2024. Most recent: −11.0% in 2024.flipped R · 2000−11.0%DR18762024
Presidential margin over time
YearMargin (D minus R)
1876+11.6%
1880+8.3%
1884+19.1%
1888−0.8%
1892+1.5%
1896−8.3%
1900−6.3%
1904−14.4%
1908−7.8%
1912+9.5%
1916−3.3%
1920−7.1%
1924−7.6%
1928−28.5%
1932+8.5%
1936+3.2%
1940+5.4%
1944−5.4%
1948−8.4%
1952−6.8%
1956−9.6%
1960−2.9%
1964+11.3%
1968−11.9%
1972−30.4%
1976+3.9%
1980−9.4%
1984−34.9%
1988−24.3%
1992−2.4%
1996+1.9%
2000−7.4%
2004−21.7%
2008−8.6%
2012−13.0%
2016−22.0%
2020−11.2%
2024−11.0%
DemocraticRepublican
38 presidential elections
Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024).
YearWonMarginDemocraticRepublicanTotal
R
−11.0%
64,81780,984147,345
R
−11.2%
56,68271,230129,352
R
−22.0%
39,33362,611105,823
R
−13.0%
39,97552,11993,222
R
−8.6%
40,29947,93989,070
R
−21.7%
30,09847,00377,752
R
−7.4%
29,73934,62066,287
D
+1.9%
23,19122,18752,012
R
−2.4%
19,17420,44052,565
R
−24.3%
16,50427,12943,775
R
−34.9%
13,62928,33742,092
R
−9.4%
15,97319,47237,379
D
+3.9%
18,55217,15336,068
R
−30.4%
11,63021,96434,004
R
−11.9%
11,67115,61833,066
D
+11.3%
17,97114,30532,373
R
−2.9%
15,47216,39232,093
R
−9.6%
13,69716,62130,430
R
−6.8%
15,05417,25732,521
R
−8.4%
11,52213,63625,282
R
−5.4%
10,67811,89522,646
D
+5.4%
13,20611,85325,059
D
+3.2%
12,79911,99624,832
D
+8.5%
12,61810,63223,302
R
−28.5%
7,16312,88420,101
R
−7.6%
8,66810,12019,013
R
−7.1%
8,4489,74718,195
R
−3.3%
5,6496,03211,745
D
+9.5%
5,5514,46611,374
R
−7.8%
5,0135,87011,023
R
−14.4%
4,4075,91510,473
R
−6.3%
4,3644,9619,458
R
−8.3%
3,8264,5418,588
D
+1.5%
4,2794,1478,526
R
−0.8%
3,9824,0468,139
D
+19.1%
4,4473,0187,475
D
+8.3%
3,9933,3737,449
D
+11.6%
3,4902,7636,253

Demographics

2024 ACS
Race, ethnicity, and ancestry
Click any group to see the ancestries typically reported within it.
Irish
16.8%
German
14.8%
English
14.1%
Italian
8.3%
American
6.8%
Polish
3.7%
Scottish
2.2%
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.
2024 ACS
Age distribution by sex
Median age: 51.9 in this county, 39.1 nationally
Male
Age
Female
0.9%
85+
1.4%
4.3%
75–84
4.6%
8.9%
65–74
10.1%
7.5%
55–64
8.8%
4.9%
45–54
5.1%
4.8%
35–44
4.9%
4.8%
25–34
4.7%
3.2%
18–24
2.9%
6.8%
5–17
6.6%
2.4%
<5
2.3%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Median household income
Inflation-adjusted dollars
$81,497
Seaford, DE ranks near the middle of US counties.
Seaford, DE$81,497
Delaware$84,954
United States$80,734
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Poverty rate
All persons below federal poverty line
10.9%
Children face moderate poverty.
Children under 1818.9%
Working age (18–64)9.3%
Seniors (65+)8.1%
Source · American Community Survey 5-year estimates, 2024 release.
2024 ACS
Language at home
Population aged 5 and older
87.0%
speak English only
Spanish9.3%
Other Indo-European2.5%
Asian & Pacific Islander0.9%
Other languages0.4%
Source · ACS 5-year estimates, 2024.
2020 religion census
Religious adherents
Adherents per capita by tradition
Catholic & Orthodox
14.6%
Methodist
8.8%
Other Christian
6.6%
Pentecostal & Holiness
2.4%
Mainline Protestant
1.8%
Baptist
0.5%
Non-Christian
0.1%
Source · 2020 US Religion Census. Remaining 65.2% of residents not counted as adherents by any reporting body.

Seaford, DE sits in the Mid-Atlantic. In 2024 it voted Republican.

Across the recorded series it reached a Democratic high of nineteen points in 1884 and a Republican high of thirty-five points in 1984. The 2024 margin was eleven points.

A population of 255,626, a 74% non-Hispanic-white share, and a median household income of $81,497 describe the metro.

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.
Seaford, DE, Delaware. Akashic. https://akashic.app/cbsa/42580/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0

Frequently asked questions

How did Seaford, DE, Delaware vote in 2024?
In 2024, Seaford, DE, Delaware voted Republican by 11.0 points (R+11), carried by the Republican candidate. Out of 147,345 votes cast, 64,817 went Democratic and 80,984 went Republican.
What is Seaford, DE, Delaware's political typology?
Akashic places Seaford, DE, Delaware in the "Realigning Affluent Suburb" typology. The typology is a data-driven cluster built from vote share, vote swing, race and ethnicity, income, language spoken at home, religion, and ancestry. Across 38 elections in the dataset, the metro has voted Democratic 11 times, Republican 27 times, and other 0 times.
When did Seaford, DE, Delaware last vote Democratic?
The most recent presidential election in which Seaford, DE, Delaware voted Democratic was 1996.
How many people live in Seaford, DE, Delaware?
Seaford, DE, Delaware has a population of 255,626 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Seaford, DE, Delaware?
Median household income in Seaford, DE, Delaware is $81,497 — above the national median of $80,734. The Delaware state median is $84,954.
What is the political history of Seaford, DE, Delaware?
Akashic tracks 38 presidential elections in Seaford, DE, Delaware from 1876 to 2024. Of those, 11 went Democratic and 27 went Republican. The metro's typology — "Realigning Affluent Suburb" — captures where that record, its demographics, and its recent swing place it among American communities.