<page_title> Demographics of South Dakota </page_title> <section_title> 10 most populous counties in 2012 </section_title> <table> <cell> Minnehaha <col_header> County </col_header> </cell> <cell> 175,037 <col_header> Projected Population </col_header> </cell> </table>
The most populous county in South Dakota is Minnehaha, which has 175,037 residents.