Nashua is a city in Chickasaw County and Floyd County, Iowa, United States. As of the 2020 census, the city's population was 1,551, a 6.7% decrease from 2010. The famed Little Brown Church featured in the song "The Church in the Wildwood" is located in Nashua.
History
thumb|Little Brown Church
Nashua was incorporated as a city in 1869. It is named after Nashua, New Hampshire, the native town of one of its founders.
Geography
According to the United States Census Bureau, the city has a total area of , of which is land and is water.