3 cities
| City | Rank | 2025 Pop. ↓ | 2020 Pop. | Annual Change | Density | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Warrenton | 1 | 10,268 | 10,048 | 0.43% | 2,344 | 4 | Town |
| Remington | 2 | 649 | 618 | 0.93% | 2,963 | 0 | Town |
| The Plains | 3 | 257 | 247 | 0.78% | 931 | 0 | Town |
Warrenton is the largest city in Fauquier County, with a population of 10,268.
The Plains is the smallest city in Fauquier County, with a population of 257.
There are 3 cities in Fauquier County, Virginia.