Le Roy is a city in Decatur County, Iowa, United States.

[4] As of the 2020 census, Le Roy is the smallest incorporated city in Iowa.

Le Roy got its start in 1880, following construction of the Humeston and Shenandoah Railroad through the territory.

[5] The city is named for Leroy Buffman, an early settler.

[6] According to the United States Census Bureau, the city has a total area of 0.33 square miles (0.85 km2), all land.

Hispanic or Latino persons of any race comprised 0.0% of the population.

50.0% of all households were made up of individuals, and 12.5% had someone living alone who was 65 years of age or older.

16.7% of all households were made up of individuals, and none had someone living alone who was 65 years of age or older.