Maysville is a city in Scott County, Iowa, United States. The population was 156 at the time of the 2020 census. Maysville is located at 41°38…Maysville is a city in Scott County, Iowa, United States. The population was 156 at the time of the 2020 census. Maysville is located at 41°38′57″N 90°43′6″W / 41.64917°N 90.71833°W. According to the United States Census Bureau, the city has a total area of 0.27 square miles, all land.