<page_title> Alto Pass, Illinois </page_title> <section_title> Demographics </section_title> <table> <cell> 2000 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 388 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> <cell> 2010 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 391 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> </table>
The population of Alto Pass, Illinois was 391 as of the 2010 census, an increase from 388 in 2000.