Gilgil ni mji wa Kenya, kaunti ya Nakuru katika Bonde la Ufa la Afrika Mashariki. Wakazi walikuwa 35,293 wakati wa sensa ya mwaka 2009. Gilgil ni pia kata ya eneo bunge la Gilgil. Sensa ya Kenya 2009 Archived 9 Januari 2019 at the Wayback Machine., tovuti ya KNBS, ilitazamwa Januari 2009. Electoral Commission of Kenya: Registered voters per polling station by electoral area/ward and constituency Archived Septemba 29, 2007, at the Wayback Machine