For the 2026 school year, there are 7 public schools serving 2,646 students in 99350, WA.
The top-ranked public schools in 99350, WA are Whitstran Elementary School, Prosser High School and Prosser Heights Elementary School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Public schools in zipcode 99350 have an average math proficiency score of 23% (versus the Washington public school average of 41%), and reading proficiency score of 35% (versus the 53% statewide average). Schools in 99350, WA have an average ranking of 2/10, which is in the bottom 50% of Washington public schools.
Minority enrollment is 72% of the student body (majority Hispanic), which is more than the Washington public school average of 53% (majority Hispanic).
Best 99350, WA Public Schools (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Whitstran Elementary School
(Math: 25-29% | Reading: 35-39%)
Rank:
Rank:
3/
Bottom 50%10
102101 W. Foisy
Prosser, WA 99350
(509) 778-4434
Prosser, WA 99350
(509) 778-4434
Gr: K-5 | 261 students Student-teacher ratio: 17:1 Minority enrollment: 81%
Rank: #22.
Prosser High School
(Math: 15-19% | Reading: 45-49%)
Rank:
Rank:
2/
Bottom 50%10
1500 Paterson Rd.
Prosser, WA 99350
(509) 786-1224
Prosser, WA 99350
(509) 786-1224
Gr: 9-12 | 877 students Student-teacher ratio: 19:1 Minority enrollment: 70%
Rank: #33.
Prosser Heights Elementary School
(Math: 31% | Reading: 29%)
Rank:
Rank:
2/
Bottom 50%10
2008 Miller Ave.
Prosser, WA 99350
(509) 786-2633
Prosser, WA 99350
(509) 786-2633
Gr: K-5 | 412 students Student-teacher ratio: 16:1 Minority enrollment: 73%
Rank: #44.
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: #55.
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%
Rank: n/an/a
832 Park Ave.
Prosser, WA 99350
(509) 786-2020
Prosser, WA 99350
(509) 786-2020
Gr: PK-2 | 407 students Student-teacher ratio: 13:1 Minority enrollment: 76%
Rank: n/an/a
Prosser Opportunity Academy
Alternative School
1500 Paterson Rd.
Prosser, WA 99350
(509) 786-1224
Prosser, WA 99350
(509) 786-1224
Gr: 9-12 | 48 students Minority enrollment: 71%
Frequently Asked Questions
What are the top-ranked public schools in 99350, WA?
The top-ranked public schools in 99350, WA include Whitstran Elementary School, Prosser High School and Prosser Heights Elementary School.
How many public schools are located in 99350?
7 public schools are located in 99350.
What is the racial composition of students in 99350?
99350 public schools minority enrollment is 72% of the student body (majority Hispanic), which is more than the Washington public schools average of 53% (majority Hispanic).
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