Sparta is a city in and the county seat of Monroe County, Wisconsin, United States, along the La Crosse River. The population was 9,522 at the 2010 census.
A post office has been in operation at Sparta since 1852. The city was named after the ancient Greek city-state of Sparta.
According to the United States Census Bureau, the city has a total area of 6.60 square miles (17.09 km2), of which 6.54 square miles (16.94 km2) is land and 0.06 square miles (0.16 km2) is water.
Sparta's location in the United States' upper midwest gives the area a temperate, continental climate. The warmest month of the year is July, with an average high temperature of 85 °F (29 °C), with overnight low temperatures averaging 63 °F (18 °C). January is the coldest month, with high temperatures averaging 26 °F (−4 °C), with the overnight low temperatures around 6 °F (−14 °C).
The Sparta/Fort McCoy Airport serves general aviation for the area.
Railroad tracks owned by Canadian Pacific Railway (CPR) pass through Sparta, providing freight service.
The city is served by several major highways, including Interstate 90, Wisconsin State Highway 16, Wisconsin State Highway 21, Wisconsin State Highway 27, and Wisconsin State Highway 71.
Sparta is at one end of the Elroy-Sparta Bike Trail.