Loudoun County, Virginia
Loudoun County, Virginia is part of the Washington-Baltimore Metropolitan Area. As of July 2003, the county is estimated to be home to 221,741 people, a 31 percent increase over the 2000 figure of 169,599. That increase makes the county the fastest growing in the United States during that period.
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According to the U.S. Census Bureau, Loudoun County has a total area of 1,350 km² (521 mi²). 1,346 km² (520 mi²) of it is land and 3 km² (1 mi²) of it is water. The total area is 0.24% water. It is bounded on the North by the Potomac River; across the river are Frederick and Montgomery Counties in Maryland; it is bounded on the south by Prince William and Fauquier Counties, on the west by Jefferson County, West Virginia and Clarke County, and on the east by Fairfax County.
As of the census2 of 2000, there are 169,599 people, 59,900 households, and 45,044 families residing in the county. The population density is 126/km² (326/mi²). There are 62,160 housing units at an average density of 46/km² (120/mi²). The racial makeup of the county is 82.79% White, 6.89% Black or African American, 5.35% Asian, 0.21% Native American, 0.06% Pacific Islander, 2.26% from other races, and 2.44% from two or more races. 5.95% of the population are Hispanic or Latino of any race.
There are 59,900 households out of which 43.10% have children under the age of 18 living with them, 64.30% are married couples living together, 7.80% have a female householder with no husband present, and 24.80% are non-families. 18.40% of all households are made up of individuals and 3.70% have someone living alone who is 65 years of age or older. The average household size is 2.82 and the average family size is 3.24.
In the county, the population is spread out with 29.80% under the age of 18, 5.70% from 18 to 24, 38.90% from 25 to 44, 20.00% from 45 to 64, and 5.60% who are 65 years of age or older. The median age is 34 years. For every 100 females there are 97.80 males. For every 100 females age 18 and over, there are 95.50 males.
The median income for a household in the county is $80,648, and the median income for a family is $88,387. Males have a median income of $58,869 versus $40,107 for females. The per capita income for the county is $33,530. 2.80% of the population and 1.70% of families are below the poverty line. Out of the total population, 2.60% of those under the age of 18 and 4.70% of those 65 and older are living below the poverty line.
Traditionally a quiet, rural county, Loudoun's population has exploded since the 1980s. Having undergone heavy suburbanization in the past few decades, Loudoun has a full-fledged service economy. It was or is home to offices for several Internet-related and high tech companies, including MCI and AOL.