Mapleton is a city in Blue Earth County, Minnesota, United States.

Mapleton was platted at its current site in 1871 when the railroad was extended to that point.

[5] According to the United States Census Bureau, the city has a total area of 1.46 square miles (3.78 km2), all land.

There were 715 housing units at an average density of 489.7 per square mile (189.1/km2).

26.9% of all households were made up of individuals, and 14% had someone living alone who was 65 years of age or older.

26.1% of all households were made up of individuals, and 14.0% had someone living alone who was 65 years of age or older.

It has an all-volunteer fire department providing 24-hour protection for the city and the six surrounding townships.