Mitchellville is a city in Sumner County, Tennessee, United States. The population was 189 at the 2010 census, down from 207 in 2000. Mitc…Mitchellville is a city in Sumner County, Tennessee, United States. The population was 189 at the 2010 census, down from 207 in 2000. Mitchellville began with the establishment of a 200-acre farm by Ezekiel Marshall in 1814. The community that developed around the farm was originally known as Mitchell's Cross Roads after Hiram Mitchell, who owned land near the intersection of two early roads. With the arrival of the railroad in 1859, the name of the community was changed to Mitchellville Station. The city incorporated in 1909, and thrived as a railroad stop throughout the first half of the 20th century. The city began to decline as rail traffic decreased in the 1950s, however, and never fully recovered from a destructive tornado in 1955.