Lewistown High School, or LHS, is a public four-year high school located at 15205 North IL Route 100 in Lewistown, Illinois, a small city in Fulton County, in the Midwestern United States.

[2][3] The campus 13 miles southwest of Canton, and serves a mixed small city, village, and rural residential community.

[4] In 2009 Lewistown High School did not make Adequate Yearly Progress, with 57% of students meeting standards, on the Prairie State Achievement Examination, a state test that is part of the No Child Left Behind Act.

The LHS mascot is the Indians with colors of scarlet red and Columbia blue.

[3] The school has one state championships on record in team athletics and activities, Boys Baseball in 1992–1993.