<page_title> List of South African provinces by population </page_title> <table> <cell> 3 <col_header> Rank </col_header> <col_header> Population </col_header> </cell> <cell> Western Cape <col_header> Province </col_header> <col_header> Percentage </col_header> </cell> <cell> 6,621,100 <col_header> 2018 mid-year estimate </col_header> </cell> </table>
Western Cape is the third most populous province, with an estimated 6.6 million inhabitants in 2018.