Middletown is a census-designated place (CDP) in Shiawassee County in the U.S. state of Michigan. Middletown is located within Caledonia Township along M-71 between the cities of Corunna and Owosso. The CDP had a population of 825 at the 2020 census.
Geography
According to the United States Census Bureau, the CDP has a total area of , of which is land and (2.08%) is water.
The Shiawassee River flows just north of Middletown.
Demographics
As of the census