It serves the northeastern half of the district,[4] with students from the cities of Coeur d'Alene, Dalton Gardens, Hayden, and a portion of unincorporated Kootenai County.

[1] Coeur d'Alene competes in athletics in IHSAA Class 5A, with the largest schools in the state.

The primary rival of CHS is Lake City, the second high school in the city which opened 31 years ago in 1994 and draws from the south and west areas of the school district.

Other 5A schools in north Idaho include nearby Post Falls (5A since 2006) to the west, and Lewiston, 120 miles (190 km) to the south.

Ninety miles (140 km) to the south on the Palouse, Moscow was a longtime rival of CDA in the IEL until it dropped to A-2 in 1979 and is now in Class 4A.