ZIP Code 22172
About Triangle
Triangle is a census-designated place (CDP) in southeastern Prince William County, Virginia, United States. The population was 9,589 at the 2020 census. It is bounded to the south by the Marine Corps Base Quantico, which surrounds the town of Quantico. Part of the National Capital Region, it is approximately 32 miles southwest of Washington, D.C.
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Area Profile
US Census (ACS 5-year · Gazetteer)
12,046
population
$113,043
median household income
585
people / sq mi
$509,600
median home value
$1,588
median gross rent
35.3
median age
3,903
housing units
3,696
households
20.6
land area (sq mi)
Key places in 22172
- The National Museum of the Marine Corps museum
- Locust Shade Park nature
- Prince William Forest Park nature
Points of interest
- gas
Brands
- 7-Eleven (1)