Grayslake Central High School, one of two high schools in District 127, is a four-year comprehensive public high school in Lake County, which offers challenging programs for students of all ability levels. It has 10 public and private sender schools from communities within the townships of Avon, Fremont, Grant, Lake Villa and Warren. Sending districts include Grayslake, Palombi, Millburn, Woodland, and Fremont. Grayslake, a residential community, is located 50 miles northwest of Chicago.

Grayslake North High School, one of two high schools in District 127, is a four-year comprehensive public high school in Lake County, which offers challenging programs for students of all ability levels. It has 10 public and private sender schools from communities within the townships of Avon, Fremont, Grant, Lake Villa and Warren. Sending districts include Grayslake, Palombi, Millburn, Woodland, and Fremont. Grayslake, a residential community, is located 50 miles northwest of Chicago.