Roseville is a city in Ramsey County, Minnesota, United States. It is one of two Twin Cities suburbs that are adjacent to both Saint Paul and Minneapolis. Roseville comprises Falcon Heights, Lauderdale, and southern Roseville. The latter was unincorporated until Roseville incorporated in 1948, and Falcon Heights and Lauderdale incorporated in 1949. The population was 36,254 at the 2020 census.

Ramsey County is a county located in the U.S. state of Minnesota. As of the 2020 census, the population was 552,352, making it the second-most populous county in Minnesota. Its county seat and largest city is Saint Paul, the state capital and the twin city of Minneapolis. The county was founded in 1849 and is named for Alexander Ramsey, the first governor of the Minnesota Territory.