Adelphi is a city located in Montgomery County and Prince George's County Maryland. Adelphi has a 2024 population of 16,878. Adelphi is currently declining at a rate of -0.2% annually but its population has increased by 3.14% since the most recent census, which recorded a population of 16,364 in 2020.
The average household income in Adelphi is $93,493 with a poverty rate of 18.62%. The median rental costs in recent years comes to - per month, and the median house value is -. The median age in Adelphi is 33.2 years, 33.7 years for males, and 32.5 years for females.
According to the most recent ACS, the racial composition of Adelphi was:
Other race
Black or African American
White
Asian
Two or more races
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 5,389 | 3.11 | 42 | 58 |
| Non Family | 2,101 | 1.71 | 32.5 | 67.5 |
| Married | 1,803 | 3.87 | 59 | 41 |
| Female | 776 | 4.56 | 54.9 | 45.1 |
| Male | 709 | 3.73 | 13 | 87 |
3.75
Average Family Size
3.11
Average Household Size
42.0%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
The highest rate of high school graduation is among white people with a rate of 95.73%.
The highest rate of bachelors degrees is among white people with a rate of 71.68%.
All
Male
Female
$37,506
Average Earnings
$39,843
Average Male
$34,232
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
27.76% of Adelphi residents speak only English, while 72.24% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 48.41% of the population.
rate
18.62%
Overall Poverty Rate
14.41%
Male Poverty Rate
23.55%
Female Poverty Rate
The race most likely to be in poverty in Adelphi is Multiple, with 44.68% below the poverty level.
The race least likely to be in poverty in Adelphi is Other, with 13.52% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 3.02%. Among those working part-time, it was 23.54%, and for those that did not work, the poverty rate was 29.97%.
Married
Widowed
Divorced
Separated
NeverMarried
32.9%
Overall Marriage Rate
31.8%
Male Marriage Rate
34.2%
Female Marriage Rate
male
female
The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 45-54.
Married
Widowed
Divorced
Separated
NeverMarried
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
6.51%
Veteran Poverty Rate
12.79%
Veteran Disability Rate
LaborForceParticipation
74.1%
Labor Force Participation
68.7%
Employment Rate
7.2%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
20.3%
Born in Adelphi
43.91%
Native Born
56.09%
Foreign Born
37.51%
Non Citizen
18.58%
Naturalized
43.91% of Adelphi residents were born in the United States, with 20.3% having been born in Maryland. 37.51% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Growth Rate |
|---|---|---|---|
| 2024 | 16,878 | -33 | -0.2% |
| 2023 | 16,911 | -33 | -0.19% |
| 2022 | 16,944 | -33 | -0.19% |
| 2021 | 16,977 | 613 | 3.75% |
| 2020 | 16,364 | -13 | -0.08% |
| 2019 | 16,377 | 626 | 3.97% |
| 2018 | 15,751 | -147 | -0.92% |
| 2017 | 15,898 | 344 | 2.21% |
| 2016 | 15,554 | 7 | 0.05% |
| 2015 | 15,547 | -338 | -2.13% |
| 2014 | 15,885 | 215 | 1.37% |
| 2013 | 15,670 | 625 | 4.15% |
| 2012 | 15,045 | 261 | 1.77% |
| 2011 | 14,784 | -302 | -2% |
| 2010 | 15,086 | 0 | 0% |