Lansing is the capital of the U.S. state of Michigan and the most populous city in Ingham County. It is mostly in the county, although portions of the city extend west into Eaton County and north into Clinton County. The 2020 census placed the city's population at 112,644, making it the sixth most populous city in Michigan. The population of its metropolitan statistical area (MSA) was 541,297 at the 2020 census, the third largest in the state after metropolitan Detroit and Grand Rapids. It was named the new state capital of Michigan in 1847, ten years after Michigan became a state.