<page_title> Polk County, Arkansas </page_title> <section_title> Demographics </section_title> <table> <cell> 2010 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 20,662 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> </table>
As of 2010 Polk County had a population of 20,662.