Note: As defined by the US Census Bureau, a city's official boundaries often extend miles beyond the city itself and may even cross county lines. As such, several thousand US cities officially exist in two or more counties (and therefore appear on multiple counties' lists of cities.)
City | Rank | 2024 Pop. | 2020 Pop. | Change | Density (/mi²) | Area (mi²) | Type |
|---|---|---|---|---|---|---|---|
| Dale City | 1 | 75,254 | 72,062 | 0.89% | 5,285 | 14.2 | CDP |
| Woodbridge | 2 | 49,046 | 42,517 | 7.01% | 5,436 | 9.0 | CDP |
| Lake Ridge | 3 | 45,330 | 45,111 | 0.68% | 4,972 | 9.1 | CDP |
| Linton Hall | 4 | 43,865 | 41,426 | 1.34% | 3,446 | 12.7 | CDP |
| Leesylvania | 5 | 25,800 | 21,880 | 7.69% | 5,598 | 4.6 | CDP |
| Cherry Hill | 6 | 23,589 | 20,344 | 2.35% | 3,023 | 7.8 | CDP |
| Montclair | 7 | 22,502 | 21,329 | 0.94% | 3,747 | 6.0 | CDP |
| Buckhall | 8 | 20,729 | 18,116 | 1.55% | 1,052 | 19.7 | CDP |
| Sudley | 9 | 19,803 | 18,019 | 1.31% | 7,185 | 2.8 | CDP |
| Gainesville | 10 | 17,887 | 16,391 | 2.62% | 1,769 | 10.1 | CDP |
| Bull Run | 11 | 16,893 | 16,769 | 0.82% | 6,475 | 2.6 | CDP |
| Manassas Park | 12 | 16,094 | 17,162 | -1.63% | 5,305 | 3.0 | City |
| Triangle | 13 | 11,336 | 10,526 | 2.02% | 4,027 | 2.8 | CDP |
| Yorkshire | 14 | 11,067 | 9,118 | 2.33% | 4,705 | 2.4 | CDP |
| Independent Hill | 15 | 10,264 | 9,514 | 2.02% | 1,151 | 8.9 | CDP |
| Potomac Mills | 16 | 6,659 | 6,826 | 1.12% | 1,567 | 4.3 | CDP |
| Dumfries | 17 | 5,982 | 5,716 | 1.12% | 3,897 | 1.5 | Town |
| Quantico Base | 18 | 5,525 | 5,283 | 1.4% | 790 | 7.0 | CDP |
| County Center | 19 | 4,150 | 4,104 | 1.54% | 2,055 | 2.0 | CDP |
| Loch Lomond | 20 | 3,876 | 4,325 | 0.31% | 5,391 | 0.7 | CDP |
| Camp Barrett | 21 | 1,757 | 1,564 | 7.66% | 256 | 6.9 | CDP |
| Innovation | 22 | 1,620 | 1,044 | 7.64% | 561 | 2.9 | CDP |
| Haymarket | 23 | 1,577 | 1,547 | 0.45% | 2,747 | 0.6 | Town |
| Nokesville | 24 | 1,468 | 1,366 | 0.55% | 153 | 9.6 | CDP |
| Occoquan | 25 | 1,051 | 1,034 | 0.38% | 6,075 | 0.2 | Town |
| Quantico | 26 | 583 | 578 | 0.17% | 8,329 | 0.1 | Town |
Note: City markers shown outside the county boundary mean that a part of the city extends into this county, but is primarily located in an adjacent county.
Dale City is the largest city in Prince William County.
Quantico is the smallest city in Prince William County.
There are 26 cities in Prince William County, Virginia.