Adelphi, MD Demographics

A map of Adelphi's Population by Race

Adelphi, Maryland has an estimated population of 17,395, an increase from the 16,823 recorded in the 2020 Census. The population is 54.7% Hispanic, 24.4% Black, 10.0% Asian, 9.7% White, 1.2% Multiracial, and 0.0% Native American/Other. This demographic dot map shows the population of Adelphi, with one dot drawn for each person counted by the Census, color-coded by race.

Adelphi has become less racially diverse since the 2020 Census. It is considerably less diverse than Maryland overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Adelphi, that probability was 64.5% in 2020 and 62.1% in the most recent ACS estimates.

Adelphi is ranked the 82nd most populous place in Maryland, out of 536 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Adelphi was ranked the 85th most populous place in the 2020 Census.

Adelphi's White Population

1,685 residents of Adelphi, or 9.7% of the population, identify as White. The share of White residents in Adelphi is significantly lower than in Maryland overall, where 46.6% of the population is White. Adelphi ranks 484th statewide in terms of White residents as a share of the population, out of 536 places.

Since the 2020 Census, Adelphi's White population has grown by an estimated 7.3%. White residents' share of Adelphi's population has remained roughly unchanged at 9.7%.

Adelphi is more White than neighboring Langley Park (2.2% White), and Chillum (4.3% White). Adelphi is less White than neighboring Hillandale (29.1% White), College Park (37.2% White), and University Park (66.1% White).

Adelphi's Black Population

4,244 residents of Adelphi, or 24.4% of the population, identify as Black. The share of Black residents in Adelphi is slightly lower than in Maryland overall, where 28.9% of the population is Black. Adelphi ranks 122nd statewide in terms of Black residents as a share of the population, out of 536 places.

Since the 2020 Census, Adelphi's Black population has declined by an estimated 14.3%. Black residents' share of Adelphi's population has decreased from 29.4% to 24.4%.

Adelphi is more Black than neighboring Langley Park (12.6% Black), Hillandale (23% Black), College Park (23.6% Black), and University Park (14.8% Black). Adelphi is less Black than neighboring Chillum (39.9% Black).

Adelphi's Asian Population

1,732 residents of Adelphi, or 10.0% of the population, identify as Asian. The share of Asian residents in Adelphi is slightly higher than in Maryland overall, where 6.5% of the population is Asian. Adelphi ranks 66th statewide in terms of Asian residents as a share of the population, out of 536 places.

Since the 2020 Census, Adelphi's Asian population has grown by an estimated 26.7%. Asian residents' share of Adelphi's population has increased from 8.1% to 10.0%.

Adelphi is more Asian than neighboring Langley Park (0.5% Asian), Hillandale (9.2% Asian), University Park (2% Asian), and Chillum (2.1% Asian). Adelphi is less Asian than neighboring College Park (15.8% Asian).

Adelphi's Hispanic Population

9,523 residents of Adelphi, or 54.7% of the population, identify as Hispanic. The share of Hispanic residents in Adelphi is significantly higher than in Maryland overall, where 12.5% of the population is Hispanic. Adelphi ranks 13th statewide in terms of Hispanic residents as a share of the population, out of 536 places.

Since the 2020 Census, Adelphi's Hispanic population has grown by an estimated 12.5%. Hispanic residents' share of Adelphi's population has increased from 50.3% to 54.7%.

Adelphi is more Hispanic than neighboring Hillandale (32.8% Hispanic), College Park (17.7% Hispanic), University Park (10.6% Hispanic), and Chillum (50.2% Hispanic). Adelphi is less Hispanic than neighboring Langley Park (83.2% Hispanic).

Adelphi's Native American/Other Population

0 residents of Adelphi, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Adelphi is comparable to the share in Maryland overall, where 0.8% of the population is Native American/Other. Adelphi ranks 213th statewide in terms of Native American/Other residents as a share of the population, out of 536 places.

Since the 2020 Census, Adelphi's Native American/Other population has declined by an estimated 100.0%. Native American/Other residents' share of Adelphi's population has decreased from 0.8% to 0.0%.

Adelphi is less Native American/Other than neighboring Langley Park (0.7% Native American/Other), Hillandale (1.9% Native American/Other), College Park (0.6% Native American/Other), University Park (1% Native American/Other), and Chillum (1.1% Native American/Other).

Adelphi's Multiracial Population

211 residents of Adelphi, or 1.2% of the population, identify as Multiracial. The share of Multiracial residents in Adelphi is slightly lower than in Maryland overall, where 4.6% of the population is Multiracial. Adelphi ranks 491st statewide in terms of Multiracial residents as a share of the population, out of 536 places.

Since the 2020 Census, Adelphi's Multiracial population has declined by an estimated 37.2%. Multiracial residents' share of Adelphi's population has decreased from 2.0% to 1.2%.

Adelphi is more Multiracial than neighboring Langley Park (0.7% Multiracial). Adelphi is less Multiracial than neighboring Hillandale (4% Multiracial), College Park (5% Multiracial), University Park (5.6% Multiracial), and Chillum (2.4% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.