Madison Lake is a small city in Blue Earth County, Minnesota, United States.

The area that is now Madison Lake was originally called Barclay's addition.

Barclay for the town and was shortly thereafter named Madison Lake.

[5] A post office called Madison Lake has been in operation since 1885.

On Friday, December 23, 1910, four blocks of downtown Madison Lake were devastated by fire.

[12] Minnesota State Highway 60 serves as a main route in the community.

According to the most recent American Community Survey, the racial composition of Madison Lake was: As of the census of 2010, there were 1,017 people, 394 households, and 271 families living in the city.

22.8% of all households were made up of individuals, and 7.3% had someone living alone who was 65 years of age or older.

21.3% of all households were made up of individuals, and 9.4% had someone living alone who was 65 years of age or older.

MLWLA promotes the protection and improvement of the lake and surrounding watershed area through education and advocacy.