Sun City Township is a township in Barber County, Kansas, USA. As of the 2000 census, its population was 100.GeographySun City Township covers an area of 47.99sqmi and contains one incorporated settlement, Sun City. According to the USGS, it contains one cemetery, Sunnyside.The streams of Bear Creek, Elk Creek, Mulberry Creek, North Elk Creek, South Elk Creek and Turkey Creek run through this township.