Districts in St. Clair County11 districts, sorted by rating
| District | City | Rating | Zip Codes |
|---|---|---|---|
| O'Fallon Township High School District 203 | O Fallon | 10/10 Excellent · 94th pct | 1 |
| Freeburg Community High School District 77 | Freeburg | 10/10 Excellent · 93rd pct | 3 |
| Mascoutah Community Unit School District 19 | Belleville | 10/10 Excellent · 93rd pct | 3 |
| New Athens Community Unit School District 60 | Lenzburg | 9/10 Excellent · 86th pct | 2 |
| Lebanon Community Unit School District 9 | Lebanon | 7/10 Good · 68th pct | 2 |
| Belleville Township High School District 201 | Fairview Heights | 5/10 Average · 45th pct | 5 |
| Dupo Community Unit School District 196 | Dupo | 5/10 Average · 45th pct | 2 |
| Marissa Community Unit School District 40 | Marissa | 3/10 Below Average · 28th pct | 1 |
| East St. Louis School District 189 | East Saint Louis | 1/10 Poor · 9th pct | 5 |
| Brooklyn Community Unit School District 188 | Lovejoy | 1/10 Poor | 1 |
| Cahokia Community Unit School District 187 | East Saint Louis | 1/10 Poor | 1 |
Zip Codes in St. Clair County
School Districts in St. Clair County, Illinois
St. Clair County has 11 public school districts covering 26 zip codes. The top-rated district in St. Clair County is O'Fallon Township High School District 203 (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (Illinois IAR 2023–24 for most districts), ranked against all districts in Illinois. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.