Grundy Center is a city located in Palermo Township within Grundy County, Iowa, in the United States. It serves as the county seat for Grundy County and is situated within the Waterloo-Cedar Falls metropolitan area.
According to the 2020 census, the city had a population of 2,796 residents, representing a 7.7% increase from the 2,596 people recorded in the 2000 census.