15 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 22193 | Woodbridge | 81,588 |
| 22191 | Woodbridge | 73,623 |
| 22192 | Woodbridge | 59,794 |
| 20109 | Manassas | 45,444 |
| 20111 | Manassas | 38,124 |
| 20155 | Gainesville | 37,486 |
| 20136 | Bristow | 32,325 |
| 20112 | Manassas | 30,500 |
| 20169 | Haymarket | 28,089 |
| 22026 | Dumfries | 22,897 |
| 22025 | Dumfries | 19,356 |
| 22172 | Triangle | 11,490 |
| 20181 | Nokesville | 10,774 |
| 20143 | Catharpin | 1,070 |
| 22125 | Occoquan | 681 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 15 ZCTAs in Prince William County, Virginia (US Census).