Corwin is a village in Wayne Township, Warren County, Ohio, United States.

[5] A post office called Corwin was established in 1898, and remained in operation until 1918.

[7] According to the United States Census Bureau, the village has a total area of 0.35 square miles (0.91 km2), all land.

20.9% of all households were made up of individuals, and 8.5% had someone living alone who was 65 years of age or older.

16.0% of all households were made up of individuals, and 4.0% had someone living alone who was 65 years of age or older.

About 6.8% of families and 11.2% of the population were below the poverty line, including 16.3% of those under the age of eighteen and none of those 65 or over.