| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| Jefferson County Joint School District 251 | Lewisville | 8/10 Good · 77th pct | 6,770 | 12 | PK–12 | 4 |
| Ririe Joint School District 252 | Ririe | 6/10 Average · 53rd pct | 733 | 2 | PK–12 | 1 |
| West Jefferson School District 253 | Hamer | 4/10 Below Average · 31st pct | 606 | 4 | PK–12 | 3 |
How Jefferson County compares
Together they enroll 8,109 students across 18 schools. The largest is Jefferson County Joint School District 251 with 6,770 students. Districts here average 6.0/10, above the Idaho average of 5.6/10. Ratings range from 4/10 to 8/10.
School Districts in Jefferson County, Idaho
Jefferson County has 3 public school districts covering 8 zip codes. The top-rated district in Jefferson County is Jefferson County Joint School District 251 (8/10). Ratings are based on the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts), ranked against all districts in Idaho. 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 Jefferson County, ID?
3 school districts serve zip codes in Jefferson County, ID. 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 Jefferson County, ID?
Of the districts serving Jefferson County, Jefferson County Joint School District 251 has the highest rating on this site at 8/10. That places it in the 77th percentile among Idaho school districts.
How are these school district ratings calculated?
Each rating is the share of students scoring proficient or above on Idaho reading and math assessments, ranked against other districts in Idaho and converted to a 1–10 scale. Percentiles compare districts within Idaho only, never across state lines.