Hedrick is a city in Keokuk County, Iowa, United States. The population was 728 at the time of the 2020 census. In 1882, the Burlington and …Hedrick is a city in Keokuk County, Iowa, United States. The population was 728 at the time of the 2020 census. In 1882, the Burlington and Western Railway a narrow gauge line, and its competitor, the Iowa Central Railway, built competing east–west lines through the area. These crossed the Rock Island tracks here, so it was a natural location for a station and town.