† Citizen voting-age population estimated for prior cycles; 2004 predates the ACS and is extrapolated. Source: ACS 5-year, table B05003.
——
D+60R+60
20042024
Boundary by 2024 margin · Precinct returns · VEST · 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
GroupAdelphiMarylandUnited States
Salvadoran22.9%3.5%0.7%
Mexican8.3%2.0%11.3%
Guatemalan7.8%1.2%0.5%
Honduran3.4%0.7%0.3%
Puerto Rican2.2%1.2%1.8%
Dominican2.2%0.5%0.7%
Nicaraguan1.0%——
Colombian0.7%0.4%0.4%
African American†20.2%23.6%9.9%
Nigerian1.2%1.1%0.2%
African0.9%1.2%0.5%
Jamaican0.8%0.7%0.4%
Ethiopian0.3%0.7%—
Ghanaian0.3%0.3%—
Haitian0.3%0.3%0.3%
Sierra Leonean0.2%——
American3.3%4.1%5.3%
German2.9%11.4%12.5%
Irish2.7%9.3%9.4%
English2.3%8.5%9.5%
Italian1.3%4.4%4.8%
Polish0.6%2.6%2.2%
French0.4%1.1%1.6%
Scottish0.4%1.1%1.3%
Asian Indian2.6%1.7%1.4%
Filipino2.3%0.9%0.9%
Chinese1.5%1.3%1.3%
Vietnamese0.8%0.4%0.6%
Korean0.8%0.8%0.4%
Pakistani0.5%0.3%—
Afghan0.5%——
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
Adelphi
Maryland
United States
Median age
33.9
39.5
39.1
Age 18–24
10.4%
8.5%
9.2%
Age 65 and older
10.7%
16.6%
17.2%
Household economy
Measure
Adelphi
Maryland
United States
Median household income
$82,137
$103,678
$84,427
Poverty rate
16.2%
9.5%
12.5%
Bachelor's degree or higher (25+)
30.0%
43.5%
35.6%
Languages at home
Measure
Adelphi
Maryland
United States
Speaks a non-English language at home
75.1%
21.1%
22.3%
Spanish
52.3%
9.6%
13.6%
French (incl. Cajun & Haitian)
4.2%
1.3%
0.7%
Other Indo-European
5.0%
2.5%
2.0%
Other languages
6.0%
2.5%
0.8%
Religious landscape
Measure
Adelphi
Maryland
United States
Catholic
—
14.7%
18.6%
Evangelical Protestant
—
11.2%
16.5%
Unclaimed / not counted
—
56.6%
51.5%
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.
Adelphi, Maryland
presidential history
Presidential margin, 2004–2024
Democratic minus Republican, by election
Presidential margin over time
Year
Margin (D minus R)
2004
+52.1%
2008
+69.9%
2012
+74.9%
2016
+78.0%
2020
+74.8%
2024
+57.0%
DemocraticRepublican
6 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. Third-party votes in 2012 are allocated from certified county totals by this place's share of each county's two-party vote — that cycle's precinct source records two-party splits. † 2004, 2020 sub-county results are estimated: the source's block-level detail for these cycles was unreliable — either county/municipality-level consolidated reporting (COVID-era) or a precinct-to-block allocation that misplaced votes — so the figures are allocated from the constituent county totals in proportion to the place and scaled to certified totals.
Year
Won
Democratic
Republican
Other
Margin
Swing
vs U.S.
Total
D
77.1%Harris2,766
20.1%Trump722
2.8%
D+57.0
R+17.8
D+58.5
3,587
D
87.2%Biden3,470
12.4%Trump495
0.3%
D+74.8
R+3.2
D+70.3
3,978
D
87.2%Clinton4,306
9.2%Trump456
3.6%
D+78.0
D+3.1
D+75.9
4,939
D
86.9%Obama3,455
12.0%Romney478
1.1%
D+74.9
D+5.0
D+71.0
3,975
D
84.3%Obama3,068
14.4%McCain524
1.3%
D+69.9
D+17.9
D+62.7
3,638
D
75.4%Kerry2,410
23.4%Bush747
1.2%
D+52.1
—
D+54.5
3,195
Adelphi sits in Prince George's County where the Capitol Beltway shapes commuter patterns and settlement density. The CDP's heavily Latino and Black population reflects a broader demographic shift in Maryland's inner suburbs over the past two decades.
Across the recorded series it reached a Democratic high of 78.0 points in 2016. Between 2020 and 2024 the city moved 17.8 points toward the Republican candidate; the 2024 margin was 57.0 points.
A population of 17,395, a 11% non-Hispanic-white share, and a median household income of $82,137 describe the city. The city's voting pattern over the last decade is most similar to that of Woodlawn and Chillum.
Akashic
Political twins — cities
The cities 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.
In 2024, Adelphi, Maryland voted Democratic by 57.0 points (D+57.0), carried by the Democratic candidate. Out of 3,587 votes cast, 2,766 went Democratic and 722 went Republican.
How many people live in Adelphi, Maryland?
Adelphi, Maryland has a population of 17,395 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Adelphi, Maryland?
Median household income in Adelphi, Maryland is $82,137 — above the national median of $80,734. The Maryland state median is $103,678.
What is the political history of Adelphi, Maryland?
Akashic tracks 6 presidential elections in Adelphi, Maryland from 2004 to 2024. Of those, 6 went Democratic and 0 went Republican.
