Adelphi, MD Profile: Facts, Map & Data


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Adelphi, Maryland - Basic Facts

The Adelphi Census Designated Place had a population of 16,683 as of July 1, 2017. Adelphi ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Maryland. See peer rankings below.

The primary coordinate point for Adelphi is located at latitude 38.9971 and longitude -76.9668 in Prince George's County. The formal boundaries for the Adelphi Census Designated Place (see map below) encompass a land area of 2.74 sq. miles and a water area of 0 sq. miles. Prince George's County is in the Eastern time zone (GMT -5). The elevation is 174 feet.

The Adelphi Census Designated Place (GNIS ID: 2389119) has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

The Adelphi Census Designated Place is located within District 17, Chillum, a minor civil division (MCD) of Prince George's County.

Beneath the boundary map are tables with Adelphi population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

Alternate Unofficial Names for Adelphi: Riggs Mill Village.

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Adelphi Census Designated Place, MD Boundary Map

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Boundary Maps: District 17, Chillum | Prince George's County | Maryland Counties / Independent Cities

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Adelphi, MD Data & Demographics (As of July 1, 2017)


Total Population 16,683
Daytime Population: Workers 2,096
Daytime Population: Residents 7,461
Total Daytime Population (TDP) 9,557
Ratio TDP/Total Population1 0.57
Population in Households 16,503
Population in Familes 11,803
Population in Group Qrtrs 180
Population Density2 6,080
Diversity Index3 92


Median Household Income $58,536
Average Household Income $76,666
Per Capita Income $25,583


Total Housing Units 5,970 (100%)
Owner Occupied HU 2,443 (40.9%)
Renter Occupied HU 3,035 (50.8%)
Vacant Housing Units 492 ( 8.2%)
Median Home Value $265,970
Average Home Value $285,168


Total Households 5,478
Average Household Size 3.01
Family Households 3,366
Average Family Size 4
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 1.4% 1.07%
Households 1.24% 0.99%
Families 0.94% 0.76%
Median Household Income   1.35%
Per Capita Income   2.32%

Adelphi, MD - Peer Comparisons by Rank and Percentile

The table below compares Adelphi to the other 518 incorporated cities, towns and CDPs in Maryland by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 84 84th
Population Density # 36 93rd
Diversity Index # 5 99th
Median Household Income # 339 35th
Per Capita Income # 392 25th

Additional comparisons and rankings can be made with a VERY EASY TO USE Maryland Census Data Comparison Tool.

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