Hooper is a city in Dodge County, Nebraska, United States. The population was 830 at the 2010 census. Hooper was established in 1…Hooper is a city in Dodge County, Nebraska, United States. The population was 830 at the 2010 census. Hooper was established in 1871, following construction of the Fremont, Elkhorn and Missouri Valley Railroad through the territory. It was named for Samuel Hooper, a US congressman from Massachusetts.