Ridgeville is a town in Franklin Township, Randolph County, Indiana, United States, along the Mississinewa River.

[7] According to the 2010 census, Ridgeville has a total area of 0.55 square miles (1.42 km2), all land.

There were 371 housing units at an average density of 662.5 per square mile (255.8/km2).

28.2% of all households were made up of individuals, and 12.1% had someone living alone who was 65 years of age or older.

The racial makeup of the town was 99.76% White, 0.12% Native American, and 0.12% from two or more races.

25.9% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.

About 7.4% of families and 8.3% of the population were below the poverty line, including 7.9% of those under the age of 18 and 9.2% of those 65 and older.