† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
1 counties by 2024 margin · County returns · MIT Election Lab
People and households
Who lives here
Exact values for this place, its state, and the United States.
Race · ethnicity · ancestry
Communities and origins
GroupSeaford, DEDelawareUnited States
Irish16.8%14.8%9.4%
German14.8%12.4%12.5%
English14.1%10.5%9.5%
Italian8.3%8.6%4.8%
American6.8%4.7%5.3%
Polish3.7%4.0%2.2%
Scottish2.2%1.7%1.3%
French1.4%1.2%1.6%
Guatemalan3.9%1.2%0.5%
Mexican3.2%3.6%11.3%
Puerto Rican1.6%3.2%1.8%
Honduran0.6%—0.3%
Salvadoran0.5%0.2%0.7%
Dominican0.3%0.7%0.7%
Cuban0.2%0.2%0.7%
Spanish0.2%0.2%—
African American†8.4%18.0%9.9%
Haitian0.7%0.5%0.3%
African0.3%0.9%0.5%
Jamaican0.3%0.7%0.4%
Asian Indian0.3%1.7%1.4%
Filipino0.3%0.5%0.9%
Chinese0.2%0.8%1.3%
Vietnamese0.2%0.2%0.6%
Hispanic or Latino counts residents of any race; the race groups count only their non-Hispanic residents, so the groups are mutually exclusive and sum to 100%. Expand a row to see ancestries reported within that group.
Age and life stage
Measure
Seaford, DE
Delaware
United States
Median age
51.9
42.4
39.1
Age 18–24
6.1%
8.4%
9.2%
Age 65 and older
30.2%
20.6%
17.2%
Household economy
Measure
Seaford, DE
Delaware
United States
Median household income
$81,497
$84,954
$84,427
Poverty rate
10.9%
10.4%
12.5%
Bachelor's degree or higher (25+)
33.0%
35.8%
35.6%
Languages at home
Measure
Seaford, DE
Delaware
United States
Speaks a non-English language at home
13.0%
15.1%
22.3%
Spanish
9.3%
7.9%
13.6%
French (incl. Cajun & Haitian)
1.1%
1.0%
0.7%
Religious landscape
Measure
Seaford, DE
Delaware
United States
Catholic
14.5%
19.8%
18.6%
Evangelical Protestant
8.8%
9.1%
16.5%
Unclaimed / not counted
65.2%
58.8%
51.5%
Mainline Protestant
9.1%
6.4%
5.2%
American Community Survey 2024 5-year (CVAP, income, age, poverty, education, language, race, ancestry) · presidential returns from MIT Election Lab through 2024 · 2020 U.S. Religion Census (ASARB) — congregational adherents; unclaimed is the residual not counted by congregations.
Seaford, DE
presidential history
Presidential margin, 1892–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
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
34 presidential elections
Third column names the leading third-party or independent finisher. Source · MIT Election Lab · ICPSR · VEST (precinct-level 2024). Swing · margin change from the prior cycle. vs U.S. · margin relative to the national result that year.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
R
43.9%Harris64,836
54.9%Trump81,025
0.7%Kennedy1,099 +2
R+11.0
D+0.3
R+9.5
147,639
All 5 candidates in 2024 · 3 minor / independent
Donald J TrumpRepublican54.9%81,025
Kamala D HarrisDemocratic43.9%64,836
Robert F KennedyIndependent0.7%1,099
Chase OliverLibertarian0.3%445
Vermin SupremeIndependent0.2%234
R
43.8%Biden56,682
55.1%Trump71,230
1.1%
R+11.2
D+10.8
R+15.7
129,352
R
37.2%Clinton39,333
59.2%Trump62,611
3.7%
R+22.0
R+9.0
R+24.1
105,823
R
42.9%Obama39,975
55.9%Romney52,119
1.2%
R+13.0
R+4.4
R+16.9
93,222
R
45.2%Obama40,299
53.8%McCain47,939
0.9%
R+8.6
D+13.2
R+15.8
89,070
R
38.7%Kerry30,098
60.5%Bush47,003
0.8%
R+21.7
R+14.4
R+19.3
77,752
R
44.9%Gore29,739
52.2%Bush34,620
2.9%
R+7.4
R+9.3
R+7.9
66,287
D
44.6%Clinton23,191
42.7%Dole22,187
12.8%
D+1.9
D+4.3
R+6.6
52,012
R
36.5%Clinton19,174
38.9%Bush20,440
24.6%
R+2.4
D+21.9
R+8.0
52,565
R
37.7%Dukakis16,504
62.0%Bush27,129
0.3%
R+24.3
D+10.7
R+16.5
43,775
R
32.4%Mondale13,629
67.3%Reagan28,337
0.3%
R+34.9
R+25.6
R+16.7
42,092
R
42.7%Carter15,973
52.1%Reagan19,472
5.2%
R+9.4
R+13.2
D+0.4
37,379
D
51.4%Carter18,552
47.6%Ford17,153
1.0%
D+3.9
D+34.3
D+1.8
36,068
R
34.2%McGovern11,630
64.6%Nixon21,964
1.2%
R+30.4
R+18.5
R+7.2
34,004
R
35.3%Humphrey11,671
47.2%Nixon15,618
17.5%
R+11.9
R+23.3
R+11.2
33,066
D
55.5%Johnson17,971
44.2%Goldwater14,305
0.3%
D+11.3
D+14.2
R+11.3
32,373
R
48.2%Kennedy15,472
51.1%Nixon16,392
0.7%
R+2.9
D+6.7
R+3.0
32,093
R
45.0%Stevenson13,697
54.6%Eisenhower16,621
0.4%
R+9.6
R+2.8
D+5.8
30,430
R
46.3%Stevenson15,054
53.1%Eisenhower17,257
0.6%
R+6.8
D+1.6
D+4.0
32,521
R
45.6%Truman11,522
53.9%Dewey13,636
0.5%
R+8.4
R+3.0
R+12.8
25,282
R
47.2%Roosevelt10,678
52.5%Dewey11,895
0.3%
R+5.4
R+10.8
R+12.9
22,646
D
52.7%Roosevelt13,206
47.3%Willkie11,853
0.0%
D+5.4
D+2.2
R+4.5
25,059
D
51.5%Roosevelt12,799
48.3%Landon11,996
0.1%
D+3.2
R+5.3
R+21.0
24,832
D
54.1%Roosevelt12,618
45.6%Hoover10,632
0.2%
D+8.5
D+37.0
R+9.3
23,302
R
35.6%Smith7,163
64.1%Hoover12,884
0.3%
R+28.5
R+20.8
R+11.0
20,101
R
45.6%Davis8,668
53.2%Coolidge10,120
1.2%
R+7.6
R+0.5
D+17.5
19,013
R
46.4%Cox8,448
53.6%Harding9,747
0.0%
R+7.1
R+3.9
D+19.1
18,195
R
48.1%Wilson5,649
51.4%Hughes6,032
0.5%
R+3.3
R+12.8
R+6.4
11,745
D
48.8%Wilson5,551
39.3%Taft4,466
11.9%
D+9.5
D+17.3
R+10.0
11,374
R
45.5%Bryan5,013
53.3%Taft5,870
1.3%
R+7.8
D+6.6
D+1.8
11,023
R
42.1%Parker4,407
56.5%Roosevelt5,915
1.4%
R+14.4
R+8.1
D+5.3
10,473
R
46.1%Bryan4,364
52.5%McKinley4,961
1.4%
R+6.3
D+2.0
D+1.2
9,458
R
44.6%Bryan3,826
52.9%McKinley4,541
2.6%
R+8.3
R+9.9
R+2.2
8,588
D
50.2%Cleveland4,279
48.6%Harrison4,147
1.2%
D+1.5
—
R+0.1
8,526
Congressional elections · 3 Senate races
U.S. Senate
Source · MIT Election Lab (MEDSL), Senate. CC-BY 4.0.
Year
Won
Democratic
Republican
Total
2024
R
43.6%62,934
52.7%76,120
144,333
2020
R
44.4%56,137
53.3%67,402
126,498
2018
R
44.0%40,675
54.5%50,391
92,530
voter registration
Registered voters
By party of registration, over time
Party registration · 2026R+5.1
vs
Presidential vote · 2024R+11.0
Registration leans Republican; the presidential vote runs 5.9 points more Democratic.
Domestic migration in Seaford, DE in Seaford, DE: net domestic migration by year
Year
Net domestic migration
2011
+2,103
2012
+2,276
2013
+2,901
2014
+3,862
2015
+4,444
2016
+4,659
2017
+5,178
2018
+5,448
2019
+5,350
2021
+11,069
2022
+8,473
2023
+7,004
2024
+6,366
2025
+6,287
Seaford, DE sits in the Mid-Atlantic. In 2024 it voted Republican.
Across the recorded series it reached a Democratic high of 11.3 points in 1964 and a Republican high of 34.9 points in 1984. The 2024 margin was 11.0 points.
A population of 255,626, a 72% non-Hispanic-white share, and a median household income of $81,497 describe the metro. The metro's voting pattern over the last decade is most similar to that of Hilton Head Island-Bluffton-Port Royal, SC and North Port-Bradenton-Sarasota, FL.
Akashic
Political twins — metros
The metros 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 →
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Seaford, DE, Delaware. Akashic. https://akashic.app/cbsa/42580/. Accessed May 20, 2026. License: CC BY 4.0.
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In 2024, Seaford, DE, Delaware voted Republican by 11.0 points (R+11.0), carried by the Republican candidate. Out of 147,639 votes cast, 64,836 went Democratic and 81,025 went Republican.
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 34 presidential elections in Seaford, DE, Delaware from 1892 to 2024. Of those, 8 went Democratic and 26 went Republican.
