Nashville is a city in Kingman County, Kansas, United States. As of the 2020 census, the population of the city was 54. Nashville was foundeā¦Nashville is a city in Kingman County, Kansas, United States. As of the 2020 census, the population of the city was 54. Nashville was founded about 1888, serving as a station on the Santa Fe Railway. It was named after Nashville, Tennessee. The first post office at Nashville was established in August 1887. The independent newspaper, Nashville Journal was established in 1912 by its editor Clyde Walter, who left Nashville to enlist in the US Army during World War I.