
Hillandale
- County:
- Prince George's County
- County Seat:
- No
- Area (mi²):
- 1.889
- State:
- Maryland
Hillandale is a CDP located in Prince George's County, Maryland. Hillandale has a 2025 population of 4,742. Hillandale is currently declining at a rate of -1.78% annually but its population has increased by 0.11% since the most recent census, which recorded a population of 4,737 in 2020.
The average household income in Hillandale is $177,462 with a poverty rate of 5.38%. The median age in Hillandale is 41 years: 41.1 years for males, and 40.8 years for females.