Clear Lake is a village in Sangamon County, Illinois, United States. The population was 267 at the 2000 census. It is part of the Springfield, Illinois Metropolitan Statistical Area. Geography Clear Lake is located at (39.814177, -89.566965). Clear Lake is located northeast of Springfield and southwest of Riverton The Sangamon River runs along the east side of the village. History Camp Butler National Cemetery is located just to the north of Clear Lake. There is also a body of water located in the village called Clear Lake. Civil War-era Camp Butler’s training and mustering grounds were on the banks of and close to Clear Lake. As an isolated, sand-bottom lake, it provided relatively clean water for the troops and horses. After the Civil War this was a popular recreation area for many in the Springfield area. Clear Lake declined in importance after the larger Lake Springfield was built in the 1930's. Clear Lake was bought by the City of Springfield in the 2000's as a backup water source. George Donner, of the infamous Donner Party, lived in the Clear Lake area with his family and is buried at Oak Hill cemetery in the village. The village is sometimes referred to as one with Clear Lake Township, although they are technically separate entities. Education Residents of Clear Lake are in the Riverton School District. Transportation The town is located just to the northeast of the Interstate 55/Interstate 72 interchange near Springfield. Old US Route 36 runs directly through the village. Illinois Route 54 is located a few miles north of the village. Notable Places The Oaks Golf Course (formerly Oak Crest Country Club) Gravel Pits (backup water supply for Springfield) Devil's hole fishing area Old Sangamon River Bridge Roselawn and Oak Hill Cemetery Sugar Creek Sangamon River Clear Lake Demographics As of the census of 2000, there were 267 people, 104 households, and 79 families residing in the village. The population density was . There were 111 housing units at an average density of . The racial makeup of the village was 96.25% White, 1.12% African American, 1.12% Asian, 0.75% from other races, and 0.75% from two or more races. Hispanic or Latino of any race were 1.87% of the population. There were 104 households, out of which 35.6% had children under the age of 18 living with them, 53.8% were married couples living together, 13.5% had a female householder with