<page_title> Waterloo, Iowa </page_title> <section_title> Demographics </section_title> <table> <cell> 2010 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 68,406 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> <cell> −0.5% <col_header> Historical population </col_header> <col_header> %± </col_header> </cell> <cell> Est. 2016 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 67,934 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> </table>
As of the 2010 Census the population of Waterloo was decreased by 0.5% to 68,406 and the 2016 Census estimates the population at 67,934.