High Quality Content by WIKIPEDIA articles! Walnut Township is a township in Cowley County, Kansas, USA. As of the 2000 census, its population was 626.Walnut Township covers an area of 34.36 square miles (89.0 km2) and surrounds the northern and eastern sides of the city of Winfield. According to the USGS, it contains one cemetery, Cowley.The streams of Black Crook Creek, Cedar Creek, East Badger Creek, Lone Elm Creek, Timber Creek and West Badger Creek run through this township.Cowley County (county code CL) is a county located in south-central Kansas, in the Central United States. The population was 36,291 at the 2000 census, and it was estimated to be 34,931 in the year 2006. Its county seat and most populous city is Winfield.