| POLK Resident total population estimate (July 1) 2009 | 583403 |
| POLK Resident total population estimates base (April 1) 2000 | 483924 |
| POLK Resident total population estimate percent change - April 1 2000 to July 1 2009 | 20.6 |
| POLK Resident total population estimate net change - April 1 2000 to July 1 2009 | 99479 |
| POLK Resident population (April 1) 2000 (complete count) | 483924 |
| POLK Resident population under 5 years (July 1 - estimate) 2008 | 41555 |
| POLK Resident population under 5 years percent (July 1 - estimate) 2008 | 7.2 |
| POLK Resident population under 18 years (July 1 - estimate) 2008 | 139886 |
| POLK Resident population under 18 years percent (July 1 - estimate) 2008 | 24.1 |
| POLK Resident population 65 years and over percent (July 1 - estimate) 2008 | 17.5 |
| POLK Resident population 65 years and over (July 1 - estimate) 2008 | 101822 |
| POLK Resident population: total females percent (July 1 - estimate) 2008 | 50.6 |
| POLK Resident population: White alone (July 1 - estimate) 2008 | 477133 |
| POLK Resident population: Black alone (July 1 - estimate) 2008 | 83531 |
| POLK Resident population: American Indian and Alaska Native alone (July 1 - estimate) 2008 | 2954 |
| POLK Resident population: Asian alone (July 1 - estimate) 2008 | 8985 |
| POLK Resident population: Native Hawaiian and Other Pacific Islander alone (July 1 - estimate) 2008 | 447 |
| POLK Resident population: Two or more races (July 1 - estimate) 2008 | 7544 |
| POLK Resident population: Hispanic or Latino Origin (July 1 - estimate) 2008 | 94144 |
| POLK Resident population: Not Hispanic White alone (July 1 - estimate) 2008 | 389785 |
| POLK Resident population: White alone percent (July 1 - estimate) 2008 | 82.2 |
| POLK Resident population: Black alone percent (July 1 - estimate) 2008 | 14.4 |
| POLK Resident population: American Indian and Alaska Native alone percent (July 1 - estimate) 2008 | 0.5 |
| POLK Resident population: Asian alone percent (July 1 - estimate) 2008 | 1.5 |
| POLK Resident population: Native Hawaiian and Other Pacific Islander alone percent (July 1 - estimate) 2008 | 0.1 |
| POLK Resident population: Two or more races percent (July 1 - estimate) 2008 | 1.3 |
| POLK Resident population: Hispanic or Latino Origin percent (July 1 - estimate) 2008 | 16.2 |
| POLK Resident population: Not Hispanic White alone percent (July 1 - estimate) 2008 | 67.1 |
| POLK Births 2006 | 8272 |
| POLK Deaths 2006 | 5575 |
| POLK Infant deaths under one year 2006 | 55 |
| POLK Population 5 years and over by residence in 1995 - percent in same house 2000 (sample) | 51.1 |
| POLK Percent foreign born population 2000 (sample) | 6.9 |
| POLK Population 5 years and over percent speaking language other than English at home 2000 (sample) | 12.1 |
| POLK Educational attainment - persons 25 years and over - percent high school graduate or higher 2000 | 74.8 |
| POLK Educational attainment - persons 25 years and over - percent bachelors degree or higher 2000 | 14.9 |
| POLK Civilian noninstitutionalized population 5 years and over with a disability 2000 (sample) | 109479 |
| POLK Average travel time to work for workers 16 years and over not working at home 2000 | 25.4 |
| POLK Housing unit estimates as of July 1 2008 | 280609 |
| POLK Housing unit estimates - net change April 1 2000 (base) to July 1 2008 | 54244 |
| POLK Housing unit estimates - percent change April 1 2000 (base) to July 1 2008 | 24 |
| POLK Owner-occupied housing units - percent of total occupied housing units 2000 (complete count) | 73.4 |
| POLK Median value of specified owner-occupied housing units 2000 (sample) | 83300 |
| POLK Housing units by units in structure - multiple units 2000 (sample) | 13.9 |
| POLK Households 2000 (complete count) | 187233 |
| POLK Persons per household 2000 (complete count) | 2.52 |
| POLK Per capita income in 1999 | 18302 |
| POLK Median household income 2008 | 44350 |
| POLK People of all ages in poverty - percent 2008 | 15.3 |
| POLK Personal income 2007 | 17951 |
| POLK Per capita personal income 2007 | 31329 |
| POLK Civilian labor force 2008 | 272831 |
| POLK Civilian labor force unemployment 2008 | 18301 |
| POLK Civilian labor force unemployment rate 2008 | 6.7 |
| POLK Employment in all industries (NAICS no code) 2007 | 278913 |
| POLK Employment in all industries net change 2000 - 2007 | 43126 |
| POLK Employment in government (NAICS 92) 2007 | 30174 |
| POLK Earnings in all industries (NAICS no code) 2007 | 1.06003e+07 |
| POLK Earnings in all industries (NAICS no code) average earnings per job 2007 | 38006 |
| POLK Private nonfarm establishments 2007 | 11849 |
| POLK Private nonfarm employment for pay period including March 12 2007 | 175264 |
| POLK Private nonfarm employment for pay period including March 12 2006 percent change 2000-2007 | 8.5 |
| POLK Nonemployer: total (NAICS 00) - establishments 2007 | 35064 |
| POLK Accommodation and Food Services: total (NAICS 72) - sales of establishments with payroll 2002 | 452479 |
| POLK Total number of firms 2002 | 32649 |
| POLK Total Black-owned firms percent 2002 | 4.9 |
| POLK Total American Indian-and Alaska Native-owned firms percent 2002 | 0.9 |
| POLK Total Asian-owned firms percent 2002 | 2.7 |
| POLK Total Hispanic-owned firms percent 2002 | 4.4 |
| POLK Total Native Hawaiian-and Other Pacific Islander-owned firms percent 2002 | 0 |
| POLK Total women-owned firms percent 2002 | 24.1 |
| POLK Manufacturing: total (NAICS 31-33) - value of shipments 2002 | 4.93843e+06 |
| POLK Wholesale trade: total (NAICS 42) - sales of establishments with payroll 2002 | 6.54202e+06 |
| POLK Retail trade: total (NAICS 44-45) - sales of establishments with payroll 2002 | 4.52231e+06 |
| POLK Retail trade: total (NAICS 44-45) - sales of establishments with payroll per capita 2002 | 9041 |
| POLK New private housing units authorized by building permits - total 2008 (20000-place universe) | 3249 |
| POLK Valuation of new private housing units authorized by building permits 2008 (20000-place universe) | 537145 |
| POLK Land in farms (NAICS) 2007 (acres) (adjusted) | 549071 |
| POLK Federal Government expenditure - total FY 2008 | 3.29173e+06 |
| POLK Federal Government expenditure per capita FY 2008 | 5670 |
| POLK Land area in square miles 2000 | 1874.38 |
| POLK Population per square mile 2000 | 258 |
