
Loch Lomond
- County:
- Prince William County
- County Seat:
- No
- Area (mi²):
- 0.719
- State:
- Virginia
Loch Lomond is a CDP located in Prince William County, Virginia. Loch Lomond has a 2025 population of 3,888. Loch Lomond is currently growing at a rate of 0.31% annually but its population has decreased by -10.1% since the most recent census, which recorded a population of 4,325 in 2020.
The average household income in Loch Lomond is $131,796 with a poverty rate of 3.85%. The median age in Loch Lomond is 40 years: 38.2 years for males, and 40.3 years for females.