CITY
Adelphi
Maryland · 17,395 residents · 2.72 sq mi
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Part of the Washington metro area
Notable rankings
#24Most foreign-born residentsof 6,82656.4%The short version
Adelphi is home to 17,395 people in Maryland. The foreign-born share is 56%. 42% of homes are owner-occupied. This skews young, with a median age of 33.9. There are 6,395 people per square mile. Getting to work takes 37 minutes on average.
At a glance
Average income
near the US median
US median: $82,259
Younger
median age 33.9
US median: 38.9
Less educated
30% hold a bachelor's degree
US average: 36%
Less affordable
home values up 58%, inflation adjusted
US median home: $376,019
Section 01
Population & growth
Land area
2.72 sq mi
Population, 1990 – 2024
202417K
Age distribution, 2024
Under 56.2%(1,076)
5 to 95.5%(951)
10 to 148.1%(1,401)
15 to 196.7%(1,166)
20 to 247.7%(1,338)
25 to 3417.6%(3,059)
35 to 4415%(2,608)
45 to 5411%(1,906)
55 to 6411.8%(2,058)
65 to 746.8%(1,186)
75 to 842.8%(486)
85 and over0.9%(160)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$82,137
−2%inflation adjusted, since 2000
from $45,827 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
54.8%
+21.9 ptssince 2009
from 32.9% in 2009
US average: 53.3%
Workforce by industry, 2024
Wholesale trade18.3%
Information7.9%
Finance & insurance5.2%
Professional, scientific, technical5.2%
Other services4.8%
Transportation & warehousing3.6%
Public administration2.3%
Retail trade2.3%
Arts, entertainment, food0.8%
Agriculture, forestry, fishing0.1%
Construction0.1%
Manufacturing0%
Education & health services0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$425,200
+58%inflation adjusted, since 2000
from $147,500 in 2000
US average: $376,019
1990 – 2024
5.2
−9%since 2009
from 5.7 in 2009
2009 – 2024
Years of local income it takes to buy a local home, on a scale of about 0 to 15. Lower is more affordable.
31
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
Section 04
Race & ethnicity
2000
White, non-Hispanic21.5%(3,229)
Black38.8%(5,812)
Hispanic / Latino25.7%(3,860)
Asian9.9%(1,481)
Other0%
2024
White, non-Hispanic9.7%(1,685)
Black24.4%(4,244)
Hispanic / Latino54.7%(9,523)
Asian10%(1,732)
Other1.2%(211)
78
−11%since 2009
from 87 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
Section 04 · Origins
Detailed origins & ancestry
Hispanic origin
Central American46.4%(8,078)
Salvadoran29.4%(5,117)
Guatemalan11.6%(2,022)
Honduran3.7%(648)
Mexican2.6%(448)
Dominican2.4%(424)
Nicaraguan1.4%(245)
South American1.4%(236)
Puerto Rican0.9%(150)
Peruvian0.7%(120)
Bolivian0.5%(94)
Cuban0.1%(25)
+ 3 more hispanic origin groups with data
Asian origin
Asian Indian4.7%(819)
Laotian1.6%(271)
Bangladeshi1%(167)
Chinese0.8%(134)
Vietnamese0.6%(110)
Filipino0.5%(81)
Korean0.4%(67)
Japanese0.2%(31)
Sri Lankan0.1%(14)
Cambodian0.1%(11)
Thai0.1%(9)
Nepalese0.1%(9)
+ 1 more asian origin group with data
Taiwanese0%(6)
Ancestry
Subsaharan African11.6%(2,020)
Ethiopian4.5%(780)
West Indian4.3%(744)
Arab2.1%(367)
Egyptian2.1%(367)
Irish1.5%(253)
Haitian1.3%(222)
Jamaican1.2%(207)
German1.2%(202)
Nigerian1.1%(187)
English1%(177)
Italian0.7%(124)
+ 26 more ancestry groups with data
Barbadian0.7%(119)
French Canadian0.5%(86)
American0.5%(80)
British0.4%(61)
Guyanese0.3%(47)
Scottish0.2%(42)
Trinidadian & Tobagonian0.2%(38)
French0.2%(31)
Polish0.2%(30)
Iranian0.1%(22)
Dutch0.1%(20)
Scotch-Irish0.1%(20)
Swiss0.1%(16)
Ghanaian0.1%(15)
Hungarian0.1%(14)
Norwegian0.1%(13)
Romanian0.1%(12)
Ukrainian0.1%(12)
Czech0.1%(11)
Swedish0.1%(11)
Austrian0.1%(10)
Russian0.1%(9)
Greek0%(7)
Canadian0%(5)
Danish0%(4)
Slovene0%(4)
Section 05
Education
High school or higher
71.7%
−7.3 ptssince 2000
from 79.0% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Women 20-64 in the labor force
79.4%
−1.7 ptssince 2020
from 81.1% in 2020
US average: 74.6%
Section 08
People & community
Computer in household
99.5%
+2.3 ptssince 2020
from 97.2% in 2020
US average: 95.5%
Marital status
Men 15+
Never married55.9%(3,967)
Married38%(2,695)
Widowed1.1%(78)
Divorced5%(355)
Women 15+
Never married47.6%(3,269)
Married36.4%(2,500)
Widowed3.8%(260)
Divorced12.3%(843)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Section 09
Health coverage
Direct-purchase
10.0%
+1.4 ptssince 2020
from 8.6% in 2020
US average: 13.8%
VA health care
0.9%
+0.1 ptssince 2020
from 0.8% in 2020
US average: 2.2%
Any private
44.4%
−1.7 ptssince 2020
from 46.1% in 2020
US average: 67.1%
Any public
32.5%
−3.8 ptssince 2020
from 36.3% in 2020
US average: 36.7%
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)29.9%(115)
Gulf War (1990s)27%(104)
Vietnam era23.9%(92)
Korean War6%(23)
World War II0%(0)
Share of the 385 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
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Frequently asked
How many people live in Adelphi, Maryland?
Adelphi, Maryland has about 17,395 residents according to the 2024 American Community Survey.
What is the median household income in Adelphi, Maryland?
The typical household in Adelphi, Maryland earns about $82,137 a year. Half of households make more than that, and half make less.
Is Adelphi, Maryland expensive?
In Adelphi, Maryland, the median home is worth about $425,200, and the typical rent is about $1,804 a month.
How educated are people in Adelphi, Maryland?
About 30.0% of adults age 25 and over in Adelphi, Maryland hold a bachelor's degree or higher.
What is the poverty rate in Adelphi, Maryland?
About 16.2% of people in Adelphi, Maryland live below the federal poverty line.
Has Adelphi, Maryland grown since 1990?
Yes, Adelphi, Maryland has grown since 1990. The population has added about 3,871 residents, a change of about 29 percent over that period.
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MarylandDATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024