Stewartville is a city in Olmsted County, Minnesota, United States.

Stewartville is part of the Rochester, MN Metropolitan Statistical Area.

As of the census[8] of 2010, there were 5,916 people, 2,318 households, and 1,596 families living in the city.

There were 2,425 housing units at an average density of 797.7 per square mile (308.0/km2).

25.8% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older.

There were 2,074 housing units at an average density of 988.7 per square mile (381.7/km2).

23.8% of all households were made up of individuals, and 9.7% had someone living alone who was 65 years of age or older.