| 1 | Idaho Home Learning Academy MALAD CITY | 51.7:1 | Other | ONEIDA COUNTY DISTRICT | 7,764 |
| 2 | Mountain View High School MERIDIAN | 21.8:1 | High | JOINT SCHOOL DISTRICT NO. 2 | 2,463 |
| 3 | Rigby High School RIGBY | 23.7:1 | High | JEFFERSON COUNTY JOINT DISTRICT | 2,040 |
| 4 | Owyhee High School MERIDIAN | 22.4:1 | High | JOINT SCHOOL DISTRICT NO. 2 | 1,884 |
| 5 | Rocky Mountain High School MERIDIAN | 22.8:1 | High | JOINT SCHOOL DISTRICT NO. 2 | 1,848 |
| 6 | Idaho Virtual Academy MERIDIAN | 20.5:1 | Other | IDAHO VIRTUAL ACADEMY INC. | 1,801 |
| 7 | Meridian High School MERIDIAN | 19:1 | High | JOINT SCHOOL DISTRICT NO. 2 | 1,774 |
| 8 | Eagle High School EAGLE | 22.2:1 | High | JOINT SCHOOL DISTRICT NO. 2 | 1,765 |
| 9 | Snake River Online BLACKFOOT | 65:1 | Elementary | SNAKE RIVER DISTRICT | 1,750 |
| 10 | Centennial High School BOISE | 21.2:1 | High | JOINT SCHOOL DISTRICT NO. 2 | 1,743 |
| 11 | Thunder Ridge High School IDAHO FALLS | 22.5:1 | High | BONNEVILLE JOINT DISTRICT | 1,693 |
| 12 | Ridgevue High School NAMPA | 21.9:1 | High | VALLIVUE SCHOOL DISTRICT | 1,640 |
| 13 | Kuna High School KUNA | 20.2:1 | High | KUNA JOINT DISTRICT | 1,624 |
| 14 | Post Falls High School POST FALLS | 21.4:1 | High | POST FALLS DISTRICT | 1,601 |
| 15 | Lake City High School COEUR D'ALENE | 20.8:1 | High | COEUR D'ALENE DISTRICT | 1,530 |
| 16 | Coeur D'alene High School COEUR D'ALENE | 20.1:1 | High | COEUR D'ALENE DISTRICT | 1,526 |
| 17 | Boise Senior High School BOISE | 18.7:1 | High | BOISE INDEPENDENT DISTRICT | 1,512 |
| 18 | Highland High School POCATELLO | 22.4:1 | High | POCATELLO DISTRICT | 1,456 |
| 19 | Canyon Ridge High School TWIN FALLS | 19.8:1 | High | TWIN FALLS DISTRICT | 1,445 |
| 20 | Middleton High School MIDDLETON | 22.4:1 | High | MIDDLETON DISTRICT | 1,443 |
| 21 | Caldwell Senior High School CALDWELL | 21.7:1 | High | CALDWELL DISTRICT | 1,400 |
| 22 | Idaho Arts Charter School NAMPA | 17.4:1 | Other | IDAHO ARTS CHARTER SCHOOL INC. | 1,395 |
| 23 | Twin Falls High School TWIN FALLS | 20.7:1 | High | TWIN FALLS DISTRICT | 1,381 |
| 24 | Skyline Senior High School IDAHO FALLS | 19.7:1 | High | IDAHO FALLS DISTRICT | 1,336 |
| 25 | Borah Senior High School BOISE | 15.7:1 | High | BOISE INDEPENDENT DISTRICT | 1,308 |
| 26 | Timberline High School BOISE | 18.9:1 | High | BOISE INDEPENDENT DISTRICT | 1,307 |
| 27 | Madison Senior High School REXBURG | 19.7:1 | High | MADISON DISTRICT | 1,299 |
| 28 | Idaho Falls Senior High School IDAHO FALLS | 20.5:1 | High | IDAHO FALLS DISTRICT | 1,298 |
| 29 | Isucceed Virtual High School BOISE | 28.6:1 | Other | ISUCCEED VIRTUAL HIGH SCHOOL INC. | 1,290 |
| 30 | Lewiston High School LEWISTON | 18.6:1 | High | LEWISTON INDEPENDENT DISTRICT | 1,288 |
| 31 | Nampa Senior High School NAMPA | 21.8:1 | High | NAMPA SCHOOL DISTRICT | 1,288 |
| 32 | Pocatello High School POCATELLO | 22.5:1 | High | POCATELLO DISTRICT | 1,281 |
| 33 | Compass Public Charter School MERIDIAN | 19.5:1 | Other | COMPASS PUBLIC CHARTER SCHOOL INC. | 1,265 |
| 34 | Madison Junior High School REXBURG | 22.7:1 | Other | MADISON DISTRICT | 1,261 |
| 35 | Vallivue High School CALDWELL | 19:1 | High | VALLIVUE SCHOOL DISTRICT | 1,252 |
| 36 | Hillcrest High School AMMON | 23.2:1 | High | BONNEVILLE JOINT DISTRICT | 1,230 |
| 37 | Inspire Virtual Charter School BOISE | 28.6:1 | Other | INSPIRE ACADEMICS INC. | 1,210 |
| 38 | Minico Senior High School RUPERT | 17.8:1 | High | MINIDOKA COUNTY JOINT DISTRICT | 1,203 |
| 39 | Bonneville High School IDAHO FALLS | 22.1:1 | High | BONNEVILLE JOINT DISTRICT | 1,176 |
| 40 | Blackfoot High School BLACKFOOT | — | High | BLACKFOOT DISTRICT | 1,170 |
| 41 | Capital Senior High School BOISE | 16.9:1 | High | BOISE INDEPENDENT DISTRICT | 1,170 |
| 42 | Columbia High School NAMPA | 20.7:1 | High | NAMPA SCHOOL DISTRICT | 1,165 |
| 43 | Skyview High School NAMPA | 17.5:1 | High | NAMPA SCHOOL DISTRICT | 1,146 |
| 44 | Jerome High School JEROME | 19.9:1 | High | JEROME JOINT DISTRICT | 1,140 |
| 45 | Victory Middle School MERIDIAN | 24.4:1 | Middle | JOINT SCHOOL DISTRICT NO. 2 | 1,075 |
| 46 | Century High School POCATELLO | 20.2:1 | High | POCATELLO DISTRICT | 1,068 |
| 47 | Sage International School of Boise BOISE | 15.8:1 | Other | THE SAGE INTERNATIONAL SCHOOL OF BOISE A PUBLIC CHARTER SCH | 1,033 |
| 48 | Burley Senior High School BURLEY | 19.5:1 | High | CASSIA COUNTY JOINT DISTRICT | 1,031 |
| 49 | North Star Charter School EAGLE | 20:1 | Other | NORTH STAR CHARTER SCHOOL INC. | 1,022 |
| 50 | Middleton Middle School MIDDLETON | 22.4:1 | Middle | MIDDLETON DISTRICT | 1,018 |