<page_title> Clear Lake, Iowa </page_title> <section_title> Demographics </section_title> <table> <cell> 1870 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 775 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> </table>
By 1870, Clear Lake had 775 residents.