The Interstate Eight Conference (I-8) has 12 schools in Illinois that are members of the conference.

The two are within the same conference, the Interstate Eight Conference, of which Sandwich and Plano were charter members.

Sandwich currently competes as part of the Interstate Eight Conference, with its inclusion into the conference having been in 1979.

Westmont competes in the Interstate Eight Conference and Illinois High School Association.

At last count, the school had 650 students, and is a member of the IHSA and the Interstate Eight Conference.

Yorkville High School, feeling its own enrollment growth, joined the LSC from the Interstate Eight Conference.

In 1971-72, she was also President of the Interstate Conference of Employment Security Agencies.

Lisle has 21 athletic teams, of 10 boys and 11 girls teams, which play in the Interstate Eight Conference and Illinois High School Association.

He was the president of the Interstate Conference on Water Problems.

Herscher is a member of the Interstate Eight Conference and participates in state tournaments sponsored by the Illinois High School Association.