People QuickFacts Williamson County Texas Population, 2012 estimate 456,232 26,059,203 Population, 2010 (April 1) estimates base 422,676 25,145,561 Population, percent change, April 1, 2010 to July 1, 2012 7.9% 3.6% Population, 2010 422,679 25,145,561 Persons under 5 years, percent, 2011 7.7% 7.6% Persons under 18 years, percent, 2011 28.3% 27.1% Persons 65 years and over, percent, 2011 9.3% 10.5% Female persons, percent, 2011 50.8% 50.4%  White persons, percent, 2011 (a) 84.8% 80.9% Black persons, percent, 2011 (a) 6.8% 12.2% American Indian and Alaska Native persons, percent, 2011 (a) 0.9% 1.0% Asian persons, percent, 2011 (a) 5.1% 4.0% Native Hawaiian and Other Pacific Islander persons, percent, 2011 (a) 0.1% 0.1% Persons reporting two or more races, percent, 2011 2.4% 1.7% Persons of Hispanic or Latino Origin, percent, 2011 (b) 23.6% 38.1% White persons not Hispanic, percent, 2011 63.1% 44.8%  Living in same house 1 year & over, percent, 2007-2011 81.1% 82.1% Foreign born persons, percent, 2007-2011 10.4% 16.2% Language other than English spoken at home, percent age 5+, 2007-2011 19.9% 34.4% High school graduate or higher, percent of persons age 25+, 2007-2011 91.9% 80.4% Bachelor's degree or higher, percent of persons age 25+, 2007-2011 37.6% 26.1% Veterans, 2007-2011 33,879 1,618,413 Mean travel time to work (minutes), workers age 16+, 2007-2011 25.8 24.8  Housing units, 2011 168,515 10,098,750 Homeownership rate, 2007-2011 69.4% 64.5% Housing units in multi-unit structures, percent, 2007-2011 20.0% 24.0% Median value of owner-occupied housing units, 2007-2011 $175,400 $126,400 Households, 2007-2011 147,912 8,667,807 Persons per household, 2007-2011 2.75 2.79 Per capita money income in the past 12 months (2011 dollars), 2007-2011 $30,688 $25,548 Median household income, 2007-2011 $71,346 $50,920 Persons below poverty level, percent, 2007-2011 6.3% 17.0%     Business QuickFacts Williamson County Texas Private nonfarm establishments, 2010 8,055 522,146 Private nonfarm employment, 2010 116,345 8,785,238 Private nonfarm employment, percent change, 2000-2010 69.1 9.5 Nonemployer establishments, 2010 30,991 1,934,472  Total number of firms, 2007 33,853 2,164,852 Black-owned firms, percent, 2007 4.0% 7.1% American Indian- and Alaska Native-owned firms, percent, 2007 S 0.9% Asian-owned firms, percent, 2007 5.9% 5.3% Native Hawaiian and Other Pacific Islander-owned firms, percent, 2007 F 0.1% Hispanic-owned firms, percent, 2007 10.8% 20.7% Women-owned firms, percent, 2007 30.5% 28.2%  Manufacturers shipments, 2007 ($1000) 1,647,635 593,541,502 Merchant wholesaler sales, 2007 ($1000) 1,525,162 424,238,194 Retail sales, 2007 ($1000) 9,918,009 311,334,781 Retail sales per capita, 2007 $26,573 $13,061 Accommodation and food services sales, 2007 ($1000) 583,644 42,054,592 Building permits, 2011 1,912 97,450     Geography QuickFacts Williamson County Texas Land area in square miles, 2010 1,118.30 261,231.71 Persons per square mile, 2010 378.0 96.3 FIPS Code 491 48 Metropolitan or Micropolitan Statistical Area Austin-Round Rock-San Marcos, TX Metro Area   (a) Includes persons reporting only one race. (b) Hispanics may be of any race, so also are included in applicable race categories. FN: Footnote on this item for this area in place of data NA: Not available D: Suppressed to avoid disclosure of confidential information X: Not applicable S: Suppressed; does not meet publication standards Z: Value greater than zero but less than half unit of measure shown F: Fewer than 100 firms Source: US Census Bureau State & County QuickFacts