Le Sueur

City in south-central Minnesota, on the Minnesota River, 32 km/20 mi north of Mankato; population (1990) 3,700. In a farming region, it is the headquarters of the Green Giant canned and frozen foods company.

It was the home of the English-born US physician and politician William W Mayo, founder of the Mayo Clinic, whose house is preserved. His son, William J Mayo, later clinic director, was born here in 1861.