For the 2025-26 school year, there is 1 public high school serving 63 students in 99138, WA.
The top ranked public high school in 99138, WA is Inchelium High School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public high school in zipcode 99138 have an average math proficiency score of 20% (versus the Washington public high school average of 34%), and reading proficiency score of 50% (versus the 65% statewide average). High schools in 99138, WA have an average ranking of 3/10, which is in the bottom 50% of Washington public high schools.
Public high school in zipcode 99138 have a Graduation Rate of 80%, which is less than the Washington average of 84%.
The school with highest graduation rate is Inchelium High School, with ≥80% graduation rate. Read more about public school graduation rate statistics in Washington or national school graduation rate statistics.
Minority enrollment is 90% of the student body (majority American Indian), which is more than the Washington public high school average of 50% (majority Hispanic).
Best 99138, WA Public High Schools (2025-26)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Inchelium High School
(Math: ≤20% | Reading: ≥50%)
Rank:
Rank:
3/
Bottom 50%10
1 Hornet Avenue
Inchelium, WA 99138
(509) 722-6181
Inchelium, WA 99138
(509) 722-6181
Gr: 9-12 | 63 students Student-teacher ratio: 11:1 Minority enrollment: 91%
99138, Washington Public Schools (Closed)
School
Location
Quick Facts
Inchelium Alternative School (Closed 2007)
Alternative School
1 Hornet Avenue
Inchelium, WA 99138
(509) 722-6181
Inchelium, WA 99138
(509) 722-6181
Gr: 9-12 | 8 students Student-teacher ratio: 8:1
Frequently Asked Questions
What are the top ranked public high schools in 99138, WA?
The top ranked public high schools in 99138, WA include Inchelium High School.
How many public high schools are located in 99138?
1 public high schools are located in 99138.
What is the racial composition of students in 99138?
99138 public high schools minority enrollment is 90% of the student body (majority American Indian), which is more than the Washington public high schools average of 50% (majority Hispanic).
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