San Carlos is a city in the Maldonado Department of southern Uruguay. It is located on Route 39, 2 kilometres (1.2 mi) south of its intersection with Route 9 and about 13.5 kilometres (8.4 mi) north of the center of the department capital city of Maldonado. The stream Arroyo San Carlos flows along the east limits of the city and the park and neighbourhood of Parque Medina is situated across it.