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CITY · 1990 CENSUS

Adelphi

Maryland · 13,524 residents · 2.72 sq mi
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The short version

Adelphi is wealthier than most US places, with a median household income of $37,051. Population has declined 10% since 2000. 42% of adults hold a bachelor's degree or higher, well above the national rate of 20%. Median home value is $141,100.

At a glance
Wealthier
above the US median
US median: $30,130
Younger
median age 31.3
US median: 33.0
More educated
42% hold a bachelor's degree
US average: 20%
Less affordable
home values up 26%, inflation adjusted
US median home: $93,722
Section 01

Population & growth

Total population
13,524
−10%vs 2000
vs 14,998 in 2000
1990 – 2024
Median age
31.3
−2%vs 2000
vs 31.8 in 2000
US average: 33.0
Population, 1990 – 2024
13K14K15K17K18K1990201020202024Adelphi
202417K
1990201020202024
Age distribution, 1990
Under 57%(946)
US avg: 7.3%
5 to 95.2%(697)
US avg: 7.3%
10 to 144.8%(654)
US avg: 6.9%
15 to 194.9%(659)
US avg: 7.1%
20 to 2410.9%(1,476)
US avg: 7.5%
25 to 3426%(3,516)
US avg: 17.5%
35 to 4415.3%(2,073)
US avg: 15.1%
45 to 549.6%(1,293)
US avg: 10.2%
55 to 646.7%(909)
US avg: 8.5%
65 to 745.9%(796)
US avg: 7.3%
75 to 842.8%(381)
US avg: 4%
85 and over0.9%(124)
US avg: 1.2%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$37,051
+7%inflation adjusted, since 2000
vs $45,827 in 2000
US average: $30,130
1990 – 2024
Per capita income
$17,263
−18%vs 2000
vs $20,952 in 2000
US average: $14,340
Poverty rate
8.1%
−0.9 ptsvs 2000
vs 9.0% in 2000
US average: 13.2%
Section 03

Housing

Median home value
$141,100
+26%inflation adjusted, since 2000
vs $147,500 in 2000
US average: $93,722
1990 – 2024
Median gross rent
$679
+14%inflation adjusted, since 2000
vs $783 in 2000
US average: $450
Owner-occupied
48.8%
−3.5 ptsvs 2000
vs 52.3% in 2000
51.2% rent
RELATED:See current rent listings in Adelphi on RentDataNow
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%
1990
White, non-Hispanic42.8%(5,788)
Black39.7%(5,373)
Hispanic / Latino9.8%(1,330)
Asian11.5%(1,562)
Other5.9%(801)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

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)
Puerto Rican0.9%(150)
Peruvian0.7%(120)
Bolivian0.5%(94)
Cuban0.1%(25)
+ 3 more hispanic origin groups with data
Panamanian0.1%(21)
Colombian0.1%(19)
Asian origin
Asian Indian4.7%(819)
Laotian1.6%(271)
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
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)
American0.5%(80)
British0.4%(61)
Guyanese0.3%(47)
Scottish0.2%(42)
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)
Danish0%(4)
Slovene0%(4)
RANKED:Largest Central American population · Largest Salvadoran population · Largest Guatemalan population · Largest Subsaharan African population · Largest Asian Indian population
Section 05

Education

Bachelor's degree or higher
42.0%
+5.0 ptsvs 2000
vs 37.0% in 2000
US average: 20.3%
High school or higher
87.6%
+8.6 ptsvs 2000
vs 79.0% in 2000
US average: 75.2%
Graduate degree
16.9%
−0.8 ptsvs 2000
vs 17.7% in 2000
US average: 7.1%
Section 06

Commute & transportation

Average commute
26.1 min
+8%vs 2000
vs 24.2 min in 2000
US average: 21.9
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status (2024)
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
Drill deeper

Places similar to Adelphi

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Pop 15,172
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Compare Adelphi to nearby cities

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ADELPHI VS
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ADELPHI VS
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ADELPHI VS
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Frequently asked

How many people live in Adelphi, Maryland?

Adelphi, Maryland has about 13,524 residents according to the 1990 Census.

What is the median household income in Adelphi, Maryland?

The typical household in Adelphi, Maryland earns about $37,051 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 $141,100, and the typical rent is about $679 a month.

How educated are people in Adelphi, Maryland?

About 42.0% 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 8.1% of people in Adelphi, Maryland live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

How we source and harmonize this data →