Lemont High School follows the Block 8 system in which students take eight courses that meet every other day.
A standard school day is composed of four 87-minute periods with an optional "zero-hour" available for students to take additional courses before the school day begins.

Lemont High School's enrollment of nearly 1,400 students can choose from approximately 200 course offerings in nine departments.
Students are assigned to course levels based on test scores, past achievement, and teacher recommendation.
Honors and/or Advanced Placement courses are available in most curricular areas.
Students also have access to classes at the Wilco Area Career Center in Romeoville, Illinois, a regional vocational center of which Lemont High School is a member.

The school's class of 2016 earned an average composite ACT test score of 23.3.
In addition, 93.9% of the graduating class of 2016 enrolled in post-high school continuing education.

In 2017, Lemont High School was named a National Blue Ribbon School, having been selected as an Exemplary High Performing School.
To earn such designation, Lemont High School placed among the top 15 percent of all schools in Illinois when ranked by student performance on the most recently administered English language arts and math state assessments, or by student performance on state assessments in combination with other student performance measures, such as attendance and/or graduation rates.
Lemont High School follows the Block 8 system in which students take eight courses that meet every other day. A standard school day is composed of four 87-minute periods with an optional "zero-hour" available for students to take additional courses before the school day begins.
Lemont High School's enrollment of nearly 1,400 students can choose from approximately 200 course offerings in nine departments. Students are assigned to course levels based on test scores, past achievement, and teacher recommendation. Honors and/or Advanced Placement courses are available in most curricular areas. Students also have access to classes at the Wilco Area Career Center in Romeoville, Illinois, a regional vocational center of which Lemont High School is a member.
The school's class of 2016 earned an average composite ACT test score of 23.3. In addition, 93.9% of the graduating class of 2016 enrolled in post-high school continuing education.
In 2017, Lemont High School was named a National Blue Ribbon School, having been selected as an Exemplary High Performing School. To earn such designation, Lemont High School placed among the top 15 percent of all schools in Illinois when ranked by student performance on the most recently administered English language arts and math state assessments, or by student performance on state assessments in combination with other student performance measures, such as attendance and/or graduation rates.
Lemont High School