Lewiston High School is a four-year public secondary school in Lewiston, Idaho, the only traditional high school in the Lewiston School District. This is only a recent development though, the change being implemented in 2020-21 school year. The school colors of LHS are purple and gold and the mascot is Joe Bengal.

Lewiston is a city and the county seat of Nez Perce County, Idaho, United States, in the state's north central region. It is the third-largest city in the northern Idaho region, behind Post Falls and Coeur d'Alene, and the twelfth-largest in the state. Lewiston is the principal city of the Lewiston, ID-WA Metropolitan Statistical Area, which includes all of Nez Perce County and Asotin County, Washington. As of the 2020 census, the population of Lewiston was 34,203, up from 31,894 in 2010.