People QuickFacts Polk County Missouri Population, 2012 estimate 31,017 6,021,988 Population, 2010 (April 1) estimates base 31,137 5,988,924 Population, percent change, April 1, 2010 to July 1, 2012 -0.4% 0.6% Population, 2010 31,137 5,988,927 Persons under 5 years, percent, 2011 6.2% 6.4% Persons under 18 years, percent, 2011 24.3% 23.5% Persons 65 years and over, percent, 2011 16.5% 14.2% Female persons, percent, 2011 50.8% 51.0%  White persons, percent, 2011 (a) 96.5% 84.0% Black persons, percent, 2011 (a) 1.0% 11.7% American Indian and Alaska Native persons, percent, 2011 (a) 0.6% 0.5% Asian persons, percent, 2011 (a) 0.4% 1.7% Native Hawaiian and Other Pacific Islander persons, percent, 2011 (a) Z 0.1% Persons reporting two or more races, percent, 2011 1.4% 1.9% Persons of Hispanic or Latino Origin, percent, 2011 (b) 2.1% 3.7% White persons not Hispanic, percent, 2011 94.6% 80.8%  Living in same house 1 year & over, percent, 2007-2011 84.3% 83.5% Foreign born persons, percent, 2007-2011 1.4% 3.8% Language other than English spoken at home, percent age 5+, 2007-2011 5.4% 6.1% High school graduate or higher, percent of persons age 25+, 2007-2011 82.2% 86.8% Bachelor's degree or higher, percent of persons age 25+, 2007-2011 17.2% 25.4% Veterans, 2007-2011 2,810 503,720 Mean travel time to work (minutes), workers age 16+, 2007-2011 24.8 23.3  Housing units, 2011 13,441 2,723,415 Homeownership rate, 2007-2011 71.5% 69.5% Housing units in multi-unit structures, percent, 2007-2011 7.9% 19.6% Median value of owner-occupied housing units, 2007-2011 $113,500 $138,900 Households, 2007-2011 11,700 2,354,104 Persons per household, 2007-2011 2.56 2.46 Per capita money income in the past 12 months (2011 dollars), 2007-2011 $18,905 $25,371 Median household income, 2007-2011 $38,423 $47,202 Persons below poverty level, percent, 2007-2011 20.3% 14.3%     Business QuickFacts Polk County Missouri Private nonfarm establishments, 2011 580 147,274 Private nonfarm employment, 2011 6,991 2,298,295 Private nonfarm employment, percent change, 2010-2011 2.3% 0.3% Nonemployer establishments, 2010 2,397 390,169  Total number of firms, 2007 2,961 501,064 Black-owned firms, percent, 2007 F 4.9% American Indian- and Alaska Native-owned firms, percent, 2007 F 0.6% Asian-owned firms, percent, 2007 F 1.9% Native Hawaiian and Other Pacific Islander-owned firms, percent, 2007 F 0.1% Hispanic-owned firms, percent, 2007 S 1.2% Women-owned firms, percent, 2007 25.9% 26.1%  Manufacturers shipments, 2007 ($1000) D 110,907,604 Merchant wholesaler sales, 2007 ($1000) 43,310 81,032,913 Retail sales, 2007 ($1000) 275,957 76,575,216 Retail sales per capita, 2007 $9,140 $12,957 Accommodation and food services sales, 2007 ($1000) 23,301 11,070,634 Building permits, 2012 48 12,297     Geography QuickFacts Polk County Missouri Land area in square miles, 2010 635.52 68,741.52 Persons per square mile, 2010 49.0 87.1 FIPS Code 167 29 Metropolitan or Micropolitan Statistical Area Springfield, MO 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