Fairfield Township is a township in Russell County, Kansas, United States. As of the 2010 United States Census, it had a population of 31. The center of Fairfield Township is located at 38°44′26″N 98°45′47″W / 38.74056°N 98.76306°W at an elevation of 1,893 feet. The township lies in the Smoky Hills region of the Great Plains. The Smoky Hill River forms the north…Fairfield Township is a township in Russell County, Kansas, United States. As of the 2010 United States Census, it had a population of 31. The center of Fairfield Township is located at 38°44′26″N 98°45′47″W / 38.74056°N 98.76306°W at an elevation of 1,893 feet. The township lies in the Smoky Hills region of the Great Plains. The Smoky Hill River forms the northern border of the township. Two of the river's tributaries, Sellers Creek and Goose Creek, flow north across the township.