Edgerton is a city in Pipestone County, Minnesota, along the Rock River. The population was 1,189 at the 2010 census.
According to the United States Census Bureau, the city has a total area of 1.2 square miles (3.0 km²), all of it land.
As of the census of 2000, there were 1,033 people, 435 households, and 287 families residing in the city. The population density was 890.2 people per square mile (343.8/km²). There were 477 housing units at an average density of 411.1 per square mile (158.8/km²). The racial makeup of the city was 98.84% White, 0.29% Asian, 0.87% from other races. Hispanic or Latino of any race were 0.68% of the population.