|coordinates_footnotes = <ref name="GNIS">[http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:477350 Geographic Names Information System (GNIS) details for Hillsboro, Kansas; United States Geological Survey (USGS); October 13, 1978.]</ref>
Hillsboro is located at {{coord|38[[Geographic coordinate system|21|5|N|97|12|9|W|type:city}}coordinates]] (38.3513063519556, -97.202456)2044723 in the [[Flint Hills]] and [[Great Plains]] of the state of [[Kansas]].<ref name="GNIS"/> According to the [[United States Census Bureau]], the city has a total area of {{convert|2.57|sqmi|sqkm|2}}, of which, {{convert|2.56|sqmi|sqkm|2}} is land and {{convert|0.01|sqmi|sqkm|2}} is water.<ref name="Gazetteer files">{{cite web |title=US Gazetteer files 2010 |url=https://www.census.gov/geo/www/gazetteer/files/Gaz_places_national.txt |publisher=[[United States Census Bureau]] |access-date=2012-07-06 |url-status=dead |archive-url=https://web.archive.org/web/20120112090031/http://www.census.gov/geo/www/gazetteer/files/Gaz_places_national.txt |archive-date=January 12, 2012 }}</ref>