For the 2026 school year, there is 1 public school serving 302 students in 83321, ID.
The top-ranked public school in 83321, ID is Castleford School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public school in zipcode 83321 have an average math proficiency score of 37% (versus the Idaho public school average of 41%), and reading proficiency score of 47% (versus the 55% statewide average). Schools in 83321, ID have an average ranking of 4/10, which is in the bottom 50% of Idaho public schools.
Minority enrollment is 36% of the student body (majority Hispanic), which is more than the Idaho public school average of 27% (majority Hispanic).
Best 83321, ID Public Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Castleford School
(Math: 35-39% | Reading: 45-49%)
Rank:
Rank:
4/
Bottom 50%10
500 Main Street
Castleford, ID 83321
(208) 537-6511
Castleford, ID 83321
(208) 537-6511
Gr: PK-12 | 302 students Student-teacher ratio: 14:1 Minority enrollment: 36%
Frequently Asked Questions
What are the top-ranked public schools in 83321, ID?
The top-ranked public schools in 83321, ID include Castleford School.
How many public schools are located in 83321?
1 public schools are located in 83321.
What is the racial composition of students in 83321?
83321 public schools minority enrollment is 36% of the student body (majority Hispanic), which is more than the Idaho public schools average of 27% (majority Hispanic).
Recent Articles
Spring Parent-Teacher Conferences: Key Questions
Spring Parent-Teacher Conferences: Questions Every Parent Should Ask to support academic growth, social development, and 2026 classroom goals.
Prepare for Spring Tests Without Anxiety
Learn how to prepare for spring standardized tests without increasing anxiety using proven strategies for families and schools.
Why Public Schools Are Launching Marketing Campaigns in 2026
Discover why public schools are launching marketing campaigns in 2026 and how enrollment shifts, school choice, and funding pressures are driving change.