About This Place
Baldwin is a city in Jackson County, Iowa, United States. The population was 127 at the 2000 census.
Baldwin is located at 42°4′26″N 90°50′26″W / 42.07389°N 90.84056°W / 42.07389; -90.84056 (42.073847, -90.840617).
According to the United States Census Bureau, the city has a total area of 0.4 square miles (0.9 km²), all of it land.