<page_title> List of County-level divisions of Hunan by population </page_title> <section_title> 2010 Census </section_title> <table> <cell> 5 </cell> <cell> Hengyang County </cell> <cell> Hengyang </cell> </table>
Hengyang County is a county and the 5th most populous county-level division in the Hunan, under the Hengyang prefecture-level.