<page_title> Clark County, Ohio </page_title> <section_title> Demographics </section_title> <table> <cell> 1960 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 131,440 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> </table>
By the census of 1960, the population of Clark County had grown to 131,440.