
Great Falls
- County:
- Fairfax County
- County Seat:
- No
- Area (mi²):
- 25.358
- State:
- Virginia
Great Falls is a CDP located in Fairfax County, Virginia. Great Falls has a 2025 population of 14,853. Great Falls is currently declining at a rate of -0.26% annually but its population has increased by 0.41% since the most recent census, which recorded a population of 14,793 in 2020.
The average household income in Great Falls is $399,821 with a poverty rate of 2.04%. The median age in Great Falls is 46.8 years: 47.4 years for males, and 46.4 years for females.