Kent County is a county located in the U.S. state of Maryland. As of the 2020 census, its population was 19,198, making it the least populous county in Maryland. Its county seat is Chestertown. The county was named for the county of Kent in England. The county is part of the Mid-Eastern Shore region of the state. Along with Caroline and Garrett Counties, it is one of three counties in the state that are not part of a metropolitan statistical area.