Cedar Rapids is a city located in Linn County, Iowa, in the United States. It serves as the county seat and is situated on both banks of the Cedar River. The city is positioned approximately 20 miles (32 km) north of Iowa City and 128 miles (206 km) northeast of Des Moines, the state capital.
As of the 2020 census, the population of Cedar Rapids was 137,710, with an estimated population of 137,935 in 2025. These figures make it the second-most populous city in the state of Iowa.