<page_title> Oelwein, Iowa </page_title> <section_title> Demographics </section_title> <table> <cell> 1900 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 5,142 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> </table>
In 1900, Oelwein had 5,142 people.