For the 2026-27 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 (2026-27)
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%
99350, Washington Public Schools (Closed)
School
Location
Quick Facts
Prosser Falls Education Center (Closed 2018)
Alternative School
1500 Grant Ave.
Prosser, WA 99350
(509) 786-1820
Prosser, WA 99350
(509) 786-1820
Gr: 9-12 | 41 students Student-teacher ratio: 41:1 Minority enrollment: 63%
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).
Recent Articles
What Makes an Elementary School Feel Supportive?
Discover what makes one elementary school more supportive than another, from teacher relationships and family communication to classroom attention, belonging, student services, leadership, routines, and responsive academic support systems.
Second School Tour: Questions Parents Forget to Ask
A second school tour can reveal what families miss initially. Learn which questions to ask about teachers, support, schedules, safety, communication, programs, and everyday student life before enrolling.
Attendance Policies Are Changing: Parent Guide 2026
Attendance policies are changing across public schools. Learn what parents should examine about absences, tardiness, interventions, flexibility, communication, and student support before choosing a school for their child today.