| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Williamson County School District | Arrington | 10/10 Excellent · 99th pct | 42,171 | 50 | PK–12 | 9 |
| Franklin Special School District | Franklin | 10/10 Excellent · 95th pct | 3,190 | 8 | PK–8 | 0 |
| Maury County School District | Primm Springs | 4/10 Below Average · 32nd pct | 13,152 | 23 | PK–12 | 1 |
How Williamson County compares
Together they enroll 58,513 students across 81 schools. The largest is Williamson County School District with 42,171 students. Districts here average 8.0/10, above the Tennessee average of 5.5/10. Ratings range from 4/10 to 10/10.
School Districts in Williamson County, Tennessee
Williamson County has 3 public school districts covering 10 zip codes. The top-rated district in Williamson County is Williamson County School District (10/10). Ratings are based on the share of students proficient in reading and math on state assessments (TCAP 2025–26), ranked against all districts in Tennessee. 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 Williamson County, TN?
3 school districts serve zip codes in Williamson County, TN. 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 Williamson County, TN?
Of the districts serving Williamson County, Williamson County School District has the highest rating on this site at 10/10. That places it in the 99th percentile among Tennessee school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Tennessee reading and math assessments, ranked against other districts in Tennessee and converted to a 1–10 scale. Percentiles compare districts within Tennessee only, never across state lines.