Luxemburg-Casco High School (known informally as L-C) is a public high school located in Luxemburg, Wisconsin, United States. It serves the greater Luxemburg-Casco area, and was founded in 1968 as a result of a merger between the school districts of Luxemburg and Casco.
L-C's athletic teams are known as the Spartans, and compete in the North Eastern Conference. The Spartans have won twenty-three WIAA state championships, tied with Wisconsin Rapids' Lincoln High School for eighteenth most in WIAA history.
From 2000 to 2019, high school enrollment declined 13.8%.
<blockquote>Enrollment at LuxemburgâÂÂCasco High School, 2000âÂÂ2019</blockquote>
In 1964, the Lake to Lake dairy coop held its annual meeting at Luxemburg High School. Protestors from the National Farmers Organization dumped milk from a milk truck on the school grounds.