For the 2026 school year, there are 5 public schools serving 2,425 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 34% (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 74% of the student body (majority Hispanic), which is more than the Washington public school average of 52% (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 | 241 students Student-teacher ratio: 14:1 Minority enrollment: 77%
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 | 860 students Student-teacher ratio: 20:1 Minority enrollment: 71%
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: 3-5 | 375 students Student-teacher ratio: 14:1 Minority enrollment: 72%
Rank: #44.
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 | 559 students Student-teacher ratio: 17:1 Minority enrollment: 76%
Rank: n/an/a
832 Park Ave.
Prosser, WA 99350
(509) 786-2020
Prosser, WA 99350
(509) 786-2020
Gr: PK-2 | 390 students Student-teacher ratio: 13:1 Minority enrollment: 75%
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%
Prosser Opportunity Academy (Closed 2025)
Alternative School
1203 Prosser Ave.
Prosser, WA 99350
(509) 786-1224
Prosser, WA 99350
(509) 786-1224
Gr: 9-12 | 35 students Minority enrollment: 77%
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?
5 public schools are located in 99350.
What is the racial composition of students in 99350?
99350 public schools minority enrollment is 74% of the student body (majority Hispanic), which is more than the Washington public schools average of 52% (majority Hispanic).
Recent Articles
Preventing Suicide in Schools: 2026 Guide for Educators
Learn updated 2026 strategies for preventing suicide in schools, including warning signs, intervention plans, and school-wide mental health support.
The Impact of Social Media on Students (2026 Update)
Explore the impact of social media on students in 2026, including academic, mental health, and safety insights for parents and educators.