For the 2026 school year, there are 2 public middle schools serving 641 students in 99350, WA.
The top-ranked public middle schools in 99350, WA are Northwest Allprep and Housel Middle School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public middle schools in zipcode 99350 have an average math proficiency score of 19% (versus the Washington public middle school average of 37%), and reading proficiency score of 35% (versus the 51% statewide average). Middle schools in 99350, WA have an average ranking of 2/10, which is in the bottom 50% of Washington public middle schools.
Minority enrollment is 69% of the student body (majority Hispanic), which is more than the Washington public middle school average of 50% (majority Hispanic).
Best 99350, WA Public Middle Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Northwest Allprep
(Math: 15-19% | Reading: 39%)
Rank:
Rank:
2/
Bottom 50%10
2016 S. Steele Rd.
Prosser, WA 99350
(972) 365-0561
Prosser, WA 99350
(972) 365-0561
Gr: K-12 | 112 students Minority enrollment: 31%
Rank: #22.
Housel Middle School
(Math: 20% | Reading: 33%)
Rank:
Rank:
2/
Bottom 50%10
2001 Highland Dr.
Prosser, WA 99350
(509) 786-1732
Prosser, WA 99350
(509) 786-1732
Gr: 6-8 | 529 students Student-teacher ratio: 16:1 Minority enrollment: 77%
Frequently Asked Questions
What are the top-ranked public middle schools in 99350, WA?
The top-ranked public middle schools in 99350, WA include Northwest Allprep and Housel Middle School.
How many public middle schools are located in 99350?
2 public middle schools are located in 99350.
What is the racial composition of students in 99350?
99350 public middle schools minority enrollment is 69% of the student body (majority Hispanic), which is more than the Washington public middle schools average of 50% (majority Hispanic).
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