| 2018-19 School Grades | |||||||||
| School Name | Percent Tested | Grade 2019 | Grade 2018 | Charter School | Title I | Alternative/ESE Center School | School Type | Percent of Minority Students | Percent of Economically Disadvantaged Students |
| TOHOPEKALIGA | 97 | D | NO | NO | N | 03 | 89.2 | 65.9 | |
| HARMONY COMMUNITY SCHOOL | 100 | A | A | NO | NO | N | 04 | 26.5 | 38 |
| NARCOOSSEE MIDDLE SCHOOL | 100 | A | A | NO | NO | N | 02 | 60.3 | 56.3 |
| DISCOVERY INTERMEDIATE SCHOOL | 99 | C | C | NO | YES | N | 02 | 91.4 | 100 |
| KISSIMMEE ELEMENTARY SCHOOL | 100 | B | A | NO | YES | N | 01 | 92.7 | 92.4 |
| NARCOOSSEE ELEMENTARY SCHOOL | 100 | A | B | NO | NO | N | 01 | 52.4 | 38 |
| CENTRAL AVENUE ELEMENTARY SCHOOL | 100 | C | C | NO | YES | N | 01 | 92.6 | 100 |
| HIGHLANDS ELEMENTARY SCHOOL | 99 | C | C | NO | YES | N | 01 | 93.5 | 100 |
| OSCEOLA HIGH SCHOOL | 97 | C | C | NO | YES | N | 03 | 87.2 | 82.9 |
| DENN JOHN MIDDLE SCHOOL | 99 | C | C | NO | YES | N | 02 | 88.9 | 100 |
| THACKER AVENUE ELEMENTARY FOR INTERNATIONAL STUDIES | 100 | C | C | NO | YES | N | 01 | 87.5 | 100 |
| ST. CLOUD ELEMENTARY SCHOOL | 100 | B | B | NO | NO | N | 01 | 56.8 | 59.6 |
| RENAISSANCE CHARTER SCHOOL AT POINCIANA | 100 | A | C | YES | YES | N | 04 | 85 | 84.7 |
| FOUR CORNERS UPPER SCHOOL | 99 | B | C | YES | NO | N | 04 | 77 | 66 |
| FLORIDA CYBER CHARTER ACADEMY AT OSCEOLA | 99 | C | D | YES | NO | N | 04 | 51 | 68.1 |
| AVANT GARDE ACADEMY | 99 | C | C | YES | YES | N | 04 | 93 | 90.1 |
| AVANT GARDE ACADEMY K8 OSCEOLA | 100 | C | D | YES | YES | N | 04 | 94.7 | 100 |
| ST. CLOUD PREPARATORY ACADEMY | 99 | C | B | YES | NO | N | 04 | 40.8 | 40.2 |
| MATER BRIGHTON LAKES | 100 | B | C | YES | YES | N | 04 | 91.9 | 86.9 |
| RENAISSANCE CHARTER SCHOOL AT TAPESTRY | 99 | B | C | YES | YES | N | 04 | 88.8 | 86.5 |
| OSCEOLA SCIENCE CHARTER SCHOOL | 99 | B | B | YES | NO | N | 01 | 80.3 | 57.7 |
| SPORTS LEADERSHIP ARTS MANAGEMENT (SLAM) | 100 | D | YES | NO | N | 02 | 92.2 | 85.4 | |
| BRIDGEPREP ACADEMY OSCEOLA COUNTY | 99 | D | YES | NO | N | 04 | 93.1 | 86.4 | |
| MATER PALMS ACADEMY | 99 | A | C | YES | YES | N | 04 | 83.8 | 85.1 |
| RENAISSANCE CHARTER SCHOOL AT BOGGY CREEK | 100 | C | C | YES | NO | N | 04 | 85.8 | 64.1 |
| TRADE LOGISTICS AVIATION ACADEMY | 100 | C | YES | NO | N | 03 | 79.1 | 71.4 | |
| ST. CLOUD HIGH SCHOOL | 99 | B | B | NO | NO | N | 03 | 63 | 59 |
| MATER ACADEMY AT ST CLOUD | 96 | C | YES | NO | N | 01 | 67.8 | 49 | |
| KISSIMMEE MIDDLE SCHOOL | 99 | C | C | NO | YES | N | 02 | 91 | 100 |
| MICHIGAN AVENUE ELEMENTARY SCHOOL | 100 | B | B | NO | YES | N | 01 | 56.3 | 87.3 |
| ST. CLOUD MIDDLE SCHOOL | 98 | B | B | NO | NO | N | 02 | 51.7 | 66.8 |
| KOA ELEMENTARY SCHOOL | 99 | C | C | NO | YES | N | 01 | 92.5 | 100 |
| REEDY CREEK ELEMENTARY SCHOOL | 100 | C | C | NO | YES | N | 01 | 77.5 | 92.4 |
| WESTSIDE K-8 SCHOOL | 100 | B | B | NO | YES | N | 04 | 74.5 | 86.3 |
| NEPTUNE MIDDLE SCHOOL | 99 | B | B | NO | YES | N | 02 | 79.7 | 72.1 |
| VENTURA ELEMENTARY SCHOOL | 99 | C | C | NO | YES | N | 01 | 94.1 | 99 |
| HORIZON MIDDLE SCHOOL | 99 | B | B | NO | YES | N | 02 | 80.2 | 87.4 |
| BOGGY CREEK ELEMENTARY SCHOOL | 100 | B | C | NO | YES | N | 01 | 90.5 | 100 |
| HICKORY TREE ELEMENTARY SCHOOL | 100 | B | C | NO | NO | N | 01 | 40.6 | 65.5 |
| GATEWAY HIGH SCHOOL | 98 | C | C | NO | YES | N | 03 | 90.3 | 80.5 |
| MILL CREEK ELEMENTARY SCHOOL | 100 | C | C | NO | YES | N | 01 | 84.5 | 100 |
| CELEBRATION SCHOOL | 99 | A | A | NO | NO | N | 04 | 44.4 | 25.7 |
| LAKEVIEW ELEMENTARY SCHOOL | 100 | B | C | NO | YES | N | 01 | 58.3 | 82.1 |
| PLEASANT HILL ELEMENTARY SCHOOL | 99 | C | C | NO | YES | N | 01 | 83.8 | 97.8 |
| PARKWAY MIDDLE SCHOOL | 100 | C | B | NO | YES | N | 02 | 91.4 | 92 |
| DEERWOOD ELEMENTARY SCHOOL | 100 | C | D | NO | YES | N | 01 | 90.5 | 100 |
| POINCIANA HIGH SCHOOL | 98 | C | C | NO | YES | N | 03 | 88.2 | 83.7 |
| LIBERTY HIGH SCHOOL | 96 | C | C | NO | YES | N | 03 | 92.1 | 84.7 |
| CYPRESS ELEMENTARY SCHOOL | 100 | B | C | NO | YES | N | 01 | 92.8 | 100 |
| NEW DIMENSIONS HIGH SCHOOL | 100 | A | A | YES | YES | N | 03 | 91.1 | 75.4 |
| PROFESSIONAL & TECHNICAL HIGH SCHOOL | 100 | A | A | NO | NO | N | 03 | 84.9 | 58.9 |
| FOUR CORNERS CHARTER SCHOOL | 99 | B | C | YES | NO | N | 01 | 70.3 | 73.3 |
| KISSIMMEE CHARTER ACADEMY | 100 | C | B | YES | YES | N | 04 | 88.8 | 78.8 |
| P. M. WELLS CHARTER ACADEMY | 100 | A | A | YES | YES | N | 04 | 92.2 | 89.6 |
| POINCIANA ACADEMY OF FINE ARTS | 99 | C | C | NO | YES | N | 01 | 93.1 | 100 |
| CELEBRATION HIGH SCHOOL | 98 | B | B | NO | NO | N | 03 | 71.1 | 62.1 |
| PARTIN SETTLEMENT ELEMENTARY SCHOOL | 100 | C | C | NO | YES | N | 01 | 79 | 79.2 |
| CANOE CREEK CHARTER ACADEMY | 100 | B | B | YES | YES | N | 04 | 80.7 | 88.9 |
| OSCEOLA COUNTY SCHOOL FOR THE ARTS | 100 | A | A | NO | NO | N | 04 | 73.5 | 43.2 |
| HARMONY HIGH SCHOOL | 98 | B | B | NO | NO | N | 03 | 43.5 | 37.8 |
| FLORA RIDGE ELEMENTARY SCHOOL | 100 | C | D | NO | NO | N | 01 | 88.7 | 100 |
| BELLALAGO CHARTER ACADEMY | 100 | B | B | YES | YES | N | 04 | 83.6 | 71.8 |
| NEPTUNE ELEMENTARY SCHOOL | 100 | C | C | NO | YES | N | 01 | 81.3 | 91.6 |
| CHESTNUT ELEMENTARY SCHOOL FOR SCIENCE AND ENGINEERING | 100 | B | C | NO | YES | N | 01 | 89.9 | 100 |
| SUNRISE ELEMENTARY SCHOOL | 100 | B | C | NO | YES | N | 01 | 81.7 | 89.8 |
| EAST LAKE ELEMENTARY SCHOOL | 100 | B | C | NO | YES | N | 01 | 82.3 | 76.8 |
| NEOCITY ACADEMY | 96 | A | NO | NO | N | 03 | 60.7 | 35.8 | |
| OSCEOLA VIRTUAL FRANCHISE (SECONDARY) | 96 | A | A | NO | NO | N | 04 | 54.2 | 24.8 |
