<page_title> List of cities in Ontario </page_title> <section_title> Cities in Ontario </section_title> <table> <cell> Mississauga <col_header> Name </col_header> </cell> <cell> 721,599 <col_header> Population (2016) </col_header> </cell> </table>
With a population of 721,599 as of the 2016 census, Mississauga is the third-most in Ontario.