<page_title> Roubaix </page_title> <section_title> Demographics </section_title> <table> <cell> 1911 <col_header> Historical population </col_header> <col_header> Year </col_header> <col_header> 1716 </col_header> <col_header> 1789 </col_header> <col_header> 1793 </col_header> <col_header> 1800 </col_header> <col_header> 1801 </col_header> <col_header> 1805 </col_header> <col_header> 1806 </col_header> <col_header> 1817 </col_header> <col_header> 1821 </col_header> <col_header> 1830 </col_header> <col_header> 1831 </col_header> <col_header> 1836 </col_header> <col_header> 1841 </col_header> <col_header> 1842 </col_header> <col_header> 1846 </col_header> <col_header> 1851 </col_header> <col_header> 1856 </col_header> <col_header> 1861 </col_header> <col_header> 1866 </col_header> <col_header> 1872 </col_header> <col_header> 1876 </col_header> <col_header> 1881 </col_header> <col_header> 1886 </col_header> <col_header> 1891 </col_header> <col_header> 1896 </col_header> <col_header> 1901 </col_header> <col_header> 1906 </col_header> </cell> <cell> 122,723 <col_header> Historical population </col_header> <col_header> Pop. </col_header> <row_header> 1911 </row_header> </cell> <cell> 1921 <col_header> Historical population </col_header> <col_header> Year </col_header> <col_header> 1716 </col_header> <col_header> 1789 </col_header> <col_header> 1793 </col_header> <col_header> 1800 </col_header> <col_header> 1801 </col_header> <col_header> 1805 </col_header> <col_header> 1806 </col_header> <col_header> 1817 </col_header> <col_header> 1821 </col_header> <col_header> 1830 </col_header> <col_header> 1831 </col_header> <col_header> 1836 </col_header> <col_header> 1841 </col_header> <col_header> 1842 </col_header> <col_header> 1846 </col_header> <col_header> 1851 </col_header> <col_header> 1856 </col_header> <col_header> 1861 </col_header> <col_header> 1866 </col_header> <col_header> 1872 </col_header> <col_header> 1876 </col_header> <col_header> 1881 </col_header> <col_header> 1886 </col_header> <col_header> 1891 </col_header> <col_header> 1896 </col_header> <col_header> 1901 </col_header> <col_header> 1906 </col_header> <col_header> 1911 </col_header> </cell> <cell> 113,265 <col_header> Historical population </col_header> <col_header> Pop. </col_header> <row_header> 1921 </row_header> </cell> </table>
Roubaix had a slight population drop from 122,723 to 113,265 between the 1911 and 1921 censuses.