Detroit is a census-designated place in Dickinson County, Kansas, United States. As of the 2020 census, the population was 102. The community was named after Detroit, Michigan. In the early years of the county, Detroit was once strongly considered to be the county seat because Abilene was considered to be "too wild" of a town to serve as a center of governm…Detroit is a census-designated place in Dickinson County, Kansas, United States. As of the 2020 census, the population was 102. The community was named after Detroit, Michigan. In the early years of the county, Detroit was once strongly considered to be the county seat because Abilene was considered to be "too wild" of a town to serve as a center of government. However, Abilene became the county seat and Detroit ceased to grow from that point forward.