Russell is the most populous city in and the county seat of Russell County, Kansas, United States. As of the 2020 census, the population of the …Russell is the most populous city in and the county seat of Russell County, Kansas, United States. As of the 2020 census, the population of the city was 4,401. In 1865, the Butterfield Overland Despatch established a short-lived station named Fossil Creek Station along its route from Atchison, Kansas to Denver near the site of modern Russell. In 1867, the Kansas Pacific Railway reached the area and built its own station, also named Fossil Creek, later just Fossil, north of the Butterfield station. That same year, the Kansas Legislature established the surrounding area as Russell County. In 1871, colonists from Ripon, Wisconsin established a permanent settlement at Fossil Station, renaming it Russell after the county. Russell was incorporated and named the provisional county seat in 1872, and, after a two-year dispute with neighboring Bunker Hill, it became the permanent county seat in 1874. In 1876, Volga Germans, mostly from the area around Saratov and Samara in Russia, began settling in and around Russell.