| District | City | Rating | Students | Schools | Grades | Zip Codes |
|---|---|---|---|---|---|---|
| McCall-Donnelly Joint School District 421 | Donnelly | 10/10 Excellent · 97th pct | 1,364 | 5 | PK–12 | 3 |
| Cascade School District 422 | Cascade | Not rated | 206 | 2 | PK–12 | 1 |
How Valley County compares
Together they enroll 1,570 students across 7 schools. The largest is McCall-Donnelly Joint School District 421 with 1,364 students. Districts here average 10.0/10, above the Idaho average of 5.5/10. 1 of the 2 districts has no state assessment data and is shown as Not rated.
School Districts in Valley County, Idaho
Valley County has 2 public school districts covering 4 zip codes. The top-rated district in Valley County is McCall-Donnelly Joint School District 421 (10/10). 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 Valley County, ID?
2 school districts serve zip codes in Valley 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 Valley County, ID?
Of the districts serving Valley County, McCall-Donnelly Joint School District 421 has the highest rating on this site at 10/10. That places it in the 97th 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.