Middletown, MI

Middletown is a Shiawassee County census-designated place in Caledonia Township, with 825 people at the 2020 census. It sits along M-71 between Corunna and Owosso, a compact 0.48-square-mile community with the Shiawassee River just north. On the road map, Middletown feels like a piece of the corridor between two cities: M-71 follows Corunna Avenue, while a branch of the Huron and Eastern Railway runs beside the highway and river.

The river gives the place its geography, while the highway supplies everyday connections between the two cities. M-71 crosses the Shiawassee on both its approaches toward Owosso and Corunna, and the same route carries through traffic past the CDP on its way between the two cities. Caledonia Township surrounds it with rural and suburban land, giving Middletown a narrow settlement pattern between two municipal downtowns. The local scoop is a small Michigan community where a state route, a short rail corridor, and the Shiawassee River all occupy the same strip of land.