Cotter is a city in western Louisa County, Iowa, United States. The population was 39 at the 2020 census. It is part of the Muscatine Micropolitan Statistical Area.
History
Cotter, originally called Cotterville, was laid out in 1878 by Margaret E. Cotter. It was located along the Chicago, Rock Island and Pacific Railroad.
Geography
Cotter is located on Iowa Highway 92 approximately 5.5 miles west of Columbus Junction and one mile east of the Louisa-Washington county line.
According to the United States Census Bureau, the city has a total area of , all land.