Adelphi, Maryland Demographics & Population 2026
During the 2020–2024 ACS period, Adelphi, Maryland had a total population of 17,395, the 82nd largest community in Maryland, with a median household income of $82,137, which is 21% lower than the state average. The poverty rate is 16.2%.
Data vintage: U.S. Census Bureau ACS 2020–2024 5-Year Estimates · refreshed July 2026 · Methodology & source notes
Adelphi Quick Facts
How Adelphi Changed
Change from the 2019–2023 ACS period to 2020–2024. These are rolling five-year estimates, not year-over-year measurements.
| Metric | 2019–2023 | 2020–2024 | Change |
|---|---|---|---|
| Population | 17,210 | 17,395 | +1.1% |
| Median household income | $80,833 | $82,137 | +1.6% |
| Median home value | $401,700 | $425,200 | +5.9% |
How Adelphi Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 68 | National average: 61
Education
Educational Attainment (Adults 25+)
Adelphi Rankings in Maryland
Explore Maryland Rankings
Other Cities in Prince George's County
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Bowie | 57,926 | $141,995 | 3.8% | $459,300 |
| Clinton | 38,376 | $124,803 | 7.7% | $431,400 |
| Chillum | 34,871 | $79,864 | 12.4% | $393,600 |
| College Park | 34,540 | $69,721 | 33.2% | $437,900 |
| Laurel | 29,798 | $100,504 | 9.0% | $385,500 |
| South Laurel | 29,272 | $88,933 | 11.8% | $458,100 |
| Fort Washington | 25,134 | $143,333 | 5.3% | $480,100 |
| Greenbelt | 24,678 | $85,997 | 19.1% | $255,400 |
| Landover | 24,514 | $72,100 | 19.5% | $313,900 |
| Suitland | 23,793 | $71,585 | 13.5% | $334,800 |
Cities Similar to Adelphi
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| White Oak | 17,329 | $83,370 | $574,000 | 43.4% | 15.1% |
| Aberdeen | 17,298 | $74,826 | $261,400 | 25.6% | 14.3% |
| Easton | 17,308 | $74,653 | $358,900 | 38.0% | 11.0% |
| East Riverdale | 18,336 | $81,831 | $361,400 | 15.1% | 24.0% |
| Ferndale | 17,529 | $94,948 | $327,600 | 23.2% | 8.2% |
Population Overview
Adelphi is a small city located in Maryland, within Prince George's County. The total population is 17,395. It ranks as the 82nd most populous out of 527 Census-designated places in Maryland.
Age Demographics
The median age in Adelphi is 33.9 years. This is 14% lower than the state median of 39.4 years.
Economy, Income & Housing
The median household income in Adelphi is $82,137. This is 21% lower than the state median of $103,678. It is also 2% higher than the national median of $80,734. The poverty rate stands at 16.2%. This is 72% higher than the state poverty rate of 9.4%. The unemployment rate is 6.0%. This is 24% higher than the state rate of 4.9%. The median home value is $425,200. Housing costs are 1% higher than the state median of $419,900. The home-value-to-income ratio is 5.2x. 41.8% of occupied housing units are owner-occupied. This homeownership rate is 38% lower than the state average of 67.6%.
Race & Ethnicity
The largest racial or ethnic group in Adelphi is Hispanic or Latino, making up 54.8% of the population. Black or African American residents account for 24.4%. The White (non-Hispanic) population (9.7%) is well below the state average of 46.6%. The Hispanic or Latino population is significantly higher than the state average (54.8% vs 12.5%). The Asian population is significantly higher than the state average (10.0% vs 6.5%).
Education
30.0% of residents aged 25 and older hold a bachelor's degree or higher. This is 31% lower than the state rate of 43.5%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 71.7%. Notably, 15.2% of adults hold a graduate or professional degree, indicating a highly educated workforce.
Data Sources & Methodology
All demographic data for Adelphi, Maryland is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Maryland state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 527 Census-designated places in Maryland. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Adelphi, Maryland?
Adelphi, Maryland has a population of 17,395 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Adelphi, MD?
The median household income in Adelphi is $82,137, which is 2% higher than the national median of $80,734.
What is the poverty rate in Adelphi, MD?
The poverty rate in Adelphi is 16.2%. This means approximately 2,778 residents live below the federal poverty line.
What is the racial makeup of Adelphi, Maryland?
Adelphi's population is 9.7% White, 24.4% Black, 54.8% Hispanic/Latino, and 10.0% Asian.
What is the median home value in Adelphi, MD?
The median home value in Adelphi is $425,200. The home-value-to-income ratio is 5.2x.
How educated is Adelphi, Maryland?
30.0% of adults (25+) in Adelphi hold a bachelor's degree or higher, and 15.2% hold a graduate or professional degree.