| Zip Code : | 22172 |
| City : | Dumfries town, Triangle |
| County : | Prince William County |
| State : | Virginia (VA) |
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| Land Area : | 12.63 sq mi |
| Water Area : | 0.17 sq mi |
| Latitude : | 38.5647266 |
| Longitude : | -77.3714792 |
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| Population (2010): | 8,699 |
| Population Estimate (2012) : | 8,330 |
| Population Density : | 688.78/sq mi |
| Housing Units (2012) : | 3,361 |
| Median Household Income (2012) : | $67,981 (Virginia : $63,636, USA : $53,046) |
| Median Family Income (2012) : | $105,647 (Virginia : $76,566, USA : $64,585) |
| Median House Price (2012) : | $382,500 (Virginia : $249,700, USA : $181,400) |