| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Grundy County R-V School District | Humphreys | 5/10 Average · 49th pct | 131 | 2 | PK–12 | 1 |
| Green City R-I School District | Green Castle | 5/10 Average · 43rd pct | 268 | 2 | PK–12 | 3 |
| Newtown-Harris R-III School District | Harris | 4/10 Below Average · 32nd pct | 81 | 2 | PK–12 | 2 |
| Milan C-2 School District | Milan | 2/10 Poor · 19th pct | 653 | 2 | PK–12 | 2 |
How Sullivan County compares
Together they enroll 1,133 students across 8 schools. The largest is Milan C-2 School District with 653 students. Districts here average 4.0/10, below the Missouri average of 5.6/10. Ratings range from 2/10 to 5/10.
School Districts in Sullivan County, Missouri
Sullivan County has 4 public school districts covering 8 zip codes. The top-rated district in Sullivan County is Grundy County R-V School District (5/10). Ratings are based on the share of students proficient in reading and math on state assessments (MAP 2025), ranked against all districts in Missouri. 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.
Frequently Asked Questions
How many school districts are in Sullivan County, MO?
4 school districts serve zip codes in Sullivan County, MO. This page lists each one with its rating, enrollment, grade span and the zip codes it covers.
What is the best-rated school district in Sullivan County, MO?
Of the districts serving Sullivan County, Grundy County R-V School District has the highest rating on this site at 5/10. That places it in the 49th percentile among Missouri school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Missouri reading and math assessments, ranked against other districts in Missouri and converted to a 1–10 scale. Percentiles compare districts within Missouri only, never across state lines.