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Triangle is in Prince William County, in the Washington-Arlington metro area.
The latitude of Triangle is 38.546N. The longitude is -77.336W.It is in the Eastern Standard time zone. Elevation is 98 feet.
The population, at the time of the 2000 census, was 5,500.
Sections below provide additional information and links about Triangle demographics, travel and tourism, nearby airports, cemeteries, the Prince William County economy, education, environment, genealogy, government, historic sites, Washington area jobs, libraries, maps, museums, newspapers and other media, nonprofit groups, real estate, recreation, religion, transportation, and weather in the 22172 ZIP code.
11% of Triangle residents report German ancestry, and 9% report Irish. For more info on local ancestry groups, see the Triangle ancestry & family history guide.
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At the time of the 2000 census, the per capita income in Triangle was $18,982, compared with $21,587 nationally.
15% of Triangle residents age 25 and older have a bachelor's or advanced college degree.
Median rent in Triangle, at the time of the 2000 Census, was $568. Monthly homeowner costs, for people with mortgages, were $1,184.
Prince William County supported George W. Bush in the 2004 presidential election. For more information, see our Triangle political report.
The average commute time for Triangle workers is 35 minutes, compared with 26 minutes nationwide.
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