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                                          Prince William County           



​Total Area (land & water): 348.5 sq. miles
County Boundaries & Water Features: Eastern border: Potomac River, NE border: Occoquan River/Reservoir & Occoquan Bay, N-NW border: Bull Run, SE border: Chopawamsic Creek
​Major Parks and Natural Lands: Manassas National Battlefield Park (Northwestern PWC), Prince William Forest Park (Southeastern PWC), Occoquan Bay National Wildlife Refuge (Eastern PWC), Locust Shade Park (Southeastern PWC), Ben Lomond Regional Park (Northwestern PWC), Dove's Landing (mid-county), Silver Lake Regional Park (Western PWC), James S. Long Regional Park (Western PWC), Andrew Leitch Park (Eastern PWC).
Bordering Counties and Cities​ Clockwise from the North: Fairfax County (N,NE), Manassas Park City (N), Manassas City (Central), Charles County, MD (E), Stafford County (S), Fauquier County (W-SW), Loudoun County (N-NW)​ ​

Combined Statistical Area (CSA): Washington-Baltimore-Arlington, DC-MD-VA-WV-PA (548)

Metropolitan Statistical Area (MSA)​: Washington-Arlington-Alexandria, DC-VA-MD-WV MSA (47900)

Metropolitan Division: Washington-Arlington-Alexandria, DC-VA-MD-WV (47894)

U.S. Census Statistical Area Delineation Files

Prince William CountyD.C. Metro1 VirginiaUnited States
​Total Population2456,105--6,131,977 8,411,808 323,127,513 
Population Density (ppl per sq. mi.)1,303.4​--​1,016.80 196.65 85.1 
​Median Age34.4--36.5 37.8 37.7 
Under 18​127,75728.0%1,430,05523.3%1,888,34322.4%74,668,32423.1%
65 and Over​37,8978.3%699,53611.4%1,158,80013.8%46,843,04014.5%
White (non-Hispanic)​207,71845.5%2,873,52346.9%5,309,32863.1%200,193,61362.0%
Black (non-Hispanic)​90,87119.9%1,525,56624.9%1,587,20618.9%39,659,13912.3%
Asian (non-Hispanic)​35,9087.9%594,5829.7%505,6186.0%16,660,9195.2%
Some other race (non-Hispanic)​1,1500.3%18,8990.3%19,0940.2%685,6990.2%
​Two or more races (non-Hispanic)18,9774.2%187,7733.1%234,4402.8%7,306,8202.3%
​Hispanic or Latino (of any race)99,84821.9%916,44214.9%733,9498.7%55,990,87517.3%
​Foreign Born103,98822.8%1,367,40822.3%998,54511.9%42,799,58413.2%
Speak English less than "very well"51,38312.2%588,4559.6%449,3815.3%25,805,8778.0%

Prince William CountyD.C. Metro1 VirginiaUnited States
Households4146,067 2,191,806 3,120,692 118,860,065 
Avg. Household Size​3.08 2.74 2.61 2.64 
​Avg. Family Size3.63 3.35 3.17 3.24 
​Married-Couple Households88,18660.4%1,077,14449.1%1,572,60250.4%57,333,14048.2%
Married Household with Own Children under 18 Years47,89932.8%501,12022.9%642,69520.6%22,852,56419.2%
Householder with no Spouse Present, with Own Children under 18 Years13,5129.3%185,9548.5%267,0838.6%11,041,0819.3%



Prince William CountyD.C. Metro1 VirginiaUnited States
Housing Units4152,274 2,342,764 3,491,185 135,702,775 
​Median Year Structures Built1991 1979 1981 1977 
1 Unit, Detached83,540 54.9%1,085,875 46.4%2,154,299 61.7%83,647,620 61.6%
1 Unit, Attached37,716 24.8%461,289 19.7%385,831 11.1%7,908,649 5.8%
2 or More Units31,018 20.4%778,849 33.2%770,251 22.1%35,477,862 26.1%
Median Value$345,900 $387,400 $248,400 $184,700 
Median Number of Rooms7.1 6.1 6 5.5 
Note: percentages for unit types may not add up to 100% due to rounding and the data excludes units such as boats, RVs, and vans.
Prince William CountyD.C. Metro1 VirginiaUnited States
In Labor Force234,139 3,388,349 4,307,753 4,331,940 
Unemployment Rate 3.4% 3.7% 3.8% 4.4%
At-Place Employment126,283​ 3,103,049 3,789,744​ 142,942,960 
Establishments of Employment9,212​ 192,549 267,281 9,870,641 
​Median Household Income​$98,546 $93,804  $66,149  $55,322  
​Individuals with Income Below Poverty Level31,7377.0%506,1478.4%897,52911.0%44,111,93814.0%

 D.C. MetroVirginiaUnited States
 PWC Rank#1 RankPWC Rank#1 RankPWC Rank#1 Rank
Total Population5thFairfax County, VA2ndFairfax County, VA154thLos Angeles County, CA
Percentage of Households that are Family Households3rdStafford County, VA8thStafford County, VA87thMogan County, UT
Average Family Size3rdManassas Park, VA3rdManassas Park, VA140thOglala Lokota County, SD
Average Household Size3rdManassas Park, VA3rdManassas Park, VA79thOglala Lokota County, SD
Median Household Income7thLoudoun County, VA6thLoudoun County, VA18thLoudoun County, VA
Mean Travel Time to Work (minutes)8thCharles County, MD8thCumberland County, VA22ndClay County, WV
Total Number of Foreign Born Residents Born in El Salvador4thMontgomery County, MD2ndFairfax County, VA10thLos Angeles County, CA
Total Number of Foreign Born Residents Born in Ghana2ndMontgomery County, MD1stPrince William County, VA4thBronx County, NY
Total Number of Foreign Born Residents Born in Pakistan2ndFairfax County, VA2ndFairfax County, VA11thKings County, NY
Total Number of Foreign Born Residents Born in Peru3rdFairfax County, VA2ndFairfax County, VA23rdMiami-Dade County, FL
Total Number of Foreign Born Residents Born in Honduras4thFairfax County, VA2ndFairfax County, VA22ndHarris County, TX



*These population estimates are from the Census Bureau's Population Estimates Program's (PEP) Annual Estimates of the Resident Population as of July 1, 2016.

1. "D.C. Metro" = Washington-Arlington-Alexandria, DC-VA-MD-WV Metropolitan Statistical Area (MSA), which includes numerous counties and independent cities in the region surrounding the District of Columbia.

2. The values in these tables were derived using a reverse calculation from percentages taken from the U.S. Census 2012-2016 American Community Survey (ACS) 5-Year Estimates. These percentages are then applied to the most up-to-date total value (population, housing units, or households) to yield the attribute values.

3. Total population for Prince William County comes from the county's standard data dictionary (as of Quarter 4, 2017). The population estimates for the D.C. Metro and Virginia were obtained from the Census Bureau's Annual Estimates of the Resident Population as of July 1, 2016.

4. Total households and housing units for Prince William County come from the county's standard data dictionary (as of Quarter 4, 2017). Households and housing unit estimates for Virginia and the D.C. Metro were obtained from the U.S. Census 2016 American Community Survey (ACS) 1-Year Estimates.

5. Economic data are for the year 2017 or averages of the latest quarters available in 2017. Sources: Bureau of Labor Statistics (BLS): Local Area Unemployment Statistics (LAUS) & Quarterly Census of Employment and Wages (QCEW). 


See Prince William County's Standard Data Dictionary for the county's official, detailed demographic database.


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