| LOUDOUN Resident total population estimate (July 1) 2009 | 301171 |
| LOUDOUN Resident total population estimates base (April 1) 2000 | 169599 |
| LOUDOUN Resident total population estimate percent change - April 1 2000 to July 1 2009 | 77.6 |
| LOUDOUN Resident total population estimate net change - April 1 2000 to July 1 2009 | 131572 |
| LOUDOUN Resident population (April 1) 2000 (complete count) | 169599 |
| LOUDOUN Resident population under 5 years (July 1 - estimate) 2008 | 27047 |
| LOUDOUN Resident population under 5 years percent (July 1 - estimate) 2008 | 9.3 |
| LOUDOUN Resident population under 18 years (July 1 - estimate) 2008 | 87037 |
| LOUDOUN Resident population under 18 years percent (July 1 - estimate) 2008 | 30 |
| LOUDOUN Resident population 65 years and over percent (July 1 - estimate) 2008 | 6.1 |
| LOUDOUN Resident population 65 years and over (July 1 - estimate) 2008 | 17769 |
| LOUDOUN Resident population: total females percent (July 1 - estimate) 2008 | 50.2 |
| LOUDOUN Resident population: White alone (July 1 - estimate) 2008 | 221447 |
| LOUDOUN Resident population: Black alone (July 1 - estimate) 2008 | 24031 |
| LOUDOUN Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 934 |
| LOUDOUN Resident population: Asian alone (July 1 - estimate) 2008 | 36416 |
| LOUDOUN Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 259 |
| LOUDOUN Resident population: Two or more races (July 1 - estimate) 2008 | 6908 |
| LOUDOUN Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 30249 |
| LOUDOUN Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 193462 |
| LOUDOUN Resident population: White alone percent (July 1 - estimate) 2008 | 76.4 |
| LOUDOUN Resident population: Black alone percent (July 1 - estimate) 2008 | 8.3 |
| LOUDOUN Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.3 |
| LOUDOUN Resident population: Asian alone percent (July 1 - estimate) 2008 | 12.6 |
| LOUDOUN Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0.1 |
| LOUDOUN Resident population: Two or more races percent (July 1 - estimate) 2008 | 2.4 |
| LOUDOUN Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 10.4 |
| LOUDOUN Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 66.7 |
| LOUDOUN Births 2006 | 5148 |
| LOUDOUN Deaths 2006 | 848 |
| LOUDOUN Infant deaths under one year 2006 | 30 |
| LOUDOUN Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 40.4 |
| LOUDOUN Percent foreign born population 2000 (sample) | 11.3 |
| LOUDOUN Population 5 years and over percent speaking language other than English at home 2000 (sample) | 15 |
| LOUDOUN Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 92.5 |
| LOUDOUN Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 47.2 |
| LOUDOUN Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 15891 |
| LOUDOUN Average travel time to work for workers 16 years and over not working at home 2000 | 30.8 |
| LOUDOUN Housing unit estimates as of July 1 2008 | 104261 |
| LOUDOUN Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 42101 |
| LOUDOUN Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 67.7 |
| LOUDOUN Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 79.4 |
| LOUDOUN Median value of specified owner-occupied housing units 2000 (sample) | 200500 |
| LOUDOUN Housing units by units in structure - multiple units 2000 (sample) | 14.6 |
| LOUDOUN Households 2000 (complete count) | 59900 |
| LOUDOUN Persons per household 2000 (complete count) | 2.82 |
| LOUDOUN Per capita income in 1999 | 33530 |
| LOUDOUN Median household income 2008 | 111582 |
| LOUDOUN People of all ages in poverty - percent 2008 | 3.1 |
| LOUDOUN Personal income 2007 | 13532 |
| LOUDOUN Per capita personal income 2007 | 48789 |
| LOUDOUN Civilian labor force 2008 | 168178 |
| LOUDOUN Civilian labor force unemployment 2008 | 4778 |
| LOUDOUN Civilian labor force unemployment rate 2008 | 2.8 |
| LOUDOUN Employment in all industries (NAICS no code) 2007 | 170080 |
| LOUDOUN Employment in all industries net change 2000 - 2007 | 58908 |
| LOUDOUN Employment in government (NAICS 92) 2007 | 20726 |
| LOUDOUN Earnings in all industries (NAICS no code) 2007 | 9.61142e+06 |
| LOUDOUN Earnings in all industries (NAICS no code) average earnings per job 2007 | 56511 |
| LOUDOUN Private nonfarm establishments 2007 | 7766 |
| LOUDOUN Private nonfarm employment for pay period including March 12 2007 | 113457 |
| LOUDOUN Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | 66.8 |
| LOUDOUN Nonemployer: total (NAICS 00) - establishments 2007 | 21956 |
| LOUDOUN Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 314609 |
| LOUDOUN Total number of firms 2002 | 18484 |
| LOUDOUN Total Black-owned firms percent 2002 | 4.7 |
| LOUDOUN Total American Indian-and Alaska Native-owned firms percent 2002 | 0 |
| LOUDOUN Total Asian-owned firms percent 2002 | 6.2 |
| LOUDOUN Total Hispanic-owned firms percent 2002 | 5.6 |
| LOUDOUN Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| LOUDOUN Total women-owned firms percent 2002 | 30.3 |
| LOUDOUN Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 929862 |
| LOUDOUN Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 1.39258e+06 |
| LOUDOUN Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 2.8685e+06 |
| LOUDOUN Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 14074 |
| LOUDOUN New private housing units authorized by building permits - total 2008 (20000-place universe) | 2457 |
| LOUDOUN Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 311937 |
| LOUDOUN Land in farms (NAICS) 2007 (acres) (adjusted) | 142452 |
| LOUDOUN Federal Government expenditure - total FY 2008 | 3.88166e+06 |
| LOUDOUN Federal Government expenditure per capita FY 2008 | 13385 |
| LOUDOUN Land area in square miles 2000 | 519.85 |
| LOUDOUN Population per square mile 2000 | 326 |
