Hillandale, Maryland

Hillandale, Maryland
Location of Hillandale, Maryland
Coordinates: 39°01′30″N 76°58′25″W / 39.02500°N 76.97361°W / 39.02500; -76.97361
Country United States
State Maryland
Counties Montgomery
Area
 • Total
1.89 sq mi (4.89 km2)
 • Land1.89 sq mi (4.89 km2)
 • Water0 sq mi (0.00 km2)
Elevation
246 ft (75 m)
Population
 (2020)
 • Total
5,774
 • Density3,056.6/sq mi (1,180.17/km2)
Time zoneUTC-5 (Eastern (EST))
 • Summer (DST)UTC-4 (EDT)
ZIP code
20903
Area codes301, 240
FIPS code24-38850
GNIS feature ID2389929

Hillandale is an unincorporated area and census-designated place located in Montgomery and Prince George's counties, Maryland, United States. As of the 2020 census, it had a population of 5,774. Hillandale is contained between the Prince George's / Montgomery County line to the east, the Anacostia River to the west, McCeney Avenue to the north, and D.C.'s Capital Beltway to the south. It borders the communities of Adelphi, Avenel, White Oak and Beltsville.