Serving 877 students in grades 9-12, Prosser High School ranks in the bottom 50% of all schools in Washington for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 15-19% (which is lower than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 45-49% (which is lower than the Washington state average of 53%).
The student-teacher ratio of 19:1 is higher than the Washington state level of 17:1.
Minority enrollment is 70% of the student body (majority Hispanic), which is higher than the Washington state average of 53% (majority Hispanic).
Quick Facts (26-27)
- Grades: 9-12
- Enrollment: 877 students
- Student-Teacher Ratio: 19:1
- Minority Enrollment: 70%
- Graduation Rate: 90-94% (Top 20% in WA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 15-19% (Btm 50%)
- Reading Proficiency: 45-49% (Btm 50%)
- Science Proficiency: 45-49% (Btm 50%)
- Attendance Zone: Prosser High School's attendance zone encompasses the entire Prosser school district, covering approximately 599 square miles. This area typically requires a 20-30 minute drive to reach the school, with an average distance of 14.2 miles to the zone's edge and a maximum distance of 26.3 miles.
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
Top Rankings
Prosser High School ranks among the top 20% of public schools in Washington for:
Category
Attribute
Graduation Rate
School Overview
Prosser High School's student population of 877 students has stayed relatively flat over five school years.
The teacher population of 45 teachers has grown by 12% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
877 students
Showing 2016–2025. Full 39-year historical data available below ↓
Total Classroom Teachers
45 teachers
Showing 2016–2025. Full 39-year historical data available below ↓
Year Founded
2025
School Calendar
School Rankings
Prosser High School ranks within the bottom 50% of all 2,088 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Prosser High School is 0.48, which is less than the diversity score at state average of 0.69. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#1671 out of 2088 schools
(Bottom 50%)
(Bottom 50%)
Showing 2013–2023. Full 14-year historical data available below ↓
Math Test Scores (% Proficient)
15-19%
41%
Showing 2012–2023. Full 14-year historical data available below ↓
Reading/Language Arts Test Scores (% Proficient)
45-49%
53%
Showing 2011–2022. Full 13-year historical data available below ↓
Science Test Scores (% Proficient)
45-49%
49%
Student-Teacher Ratio
19:1
17:1
Showing 2016–2025. Full 39-year historical data available below ↓
American Indian
1%
1%
Showing 2011–2025. Full 34-year historical data available below ↓
Asian
1%
9%
Showing 2016–2025. Full 38-year historical data available below ↓
Hispanic
66%
27%
Showing 2016–2025. Full 38-year historical data available below ↓
White
30%
47%
Showing 2016–2025. Full 38-year historical data available below ↓
Two or more races
2%
9%
Showing 2015–2025. Full 15-year historical data available below ↓
All Ethnic Groups
Showing 2016–2025. Full 38-year historical data available below ↓
Graduation Rate
90-94%
83.8%
Showing 2012–2023. Full 13-year historical data available below ↓
Chronically Absent Students
(22-23)29.4%
34.7%
Eligible for Free Lunch
53%
39%
Showing 2016–2025. Full 24-year historical data available below ↓
Eligible for Reduced Lunch
9%
9%
Showing 2015–2025. Full 24-year historical data available below ↓
School Statewide Testing
School District Name
Sports
School Mascot
Mustang
Source: National Center for Education Statistics (NCES), WA Dept. of Education
Frequently Asked Questions
What is Prosser High School's ranking?
Prosser High School is ranked #1671 out of 2,088 schools, which ranks it among the bottom 50% of public schools in Washington.
What schools are Prosser High School often compared to?
Prosser High Schoolis often viewed alongside schools like Richland High School, Hanford High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
15-19% of students have achieved math proficiency (compared to the 41% WA state average), while 45-49% of students have achieved reading proficiency (compared to the 53% WA state average).
What is the graduation rate of Prosser High School?
The graduation rate of Prosser High School is 90-94%, which is higher than the Washington state average of 83.8%.
How many students attend Prosser High School?
877 students attend Prosser High School.
What is the racial composition of the student body?
66% of Prosser High School students are Hispanic, 30% of students are White, 2% of students are Two or more races, 1% of students are American Indian, and 1% of students are Asian.
What is the student-teacher ratio of Prosser High School?
Prosser High School has a student ration of 19:1, which is higher than the Washington state average of 17:1.
What grades does Prosser High School offer ?
Prosser High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Prosser High School part of?
Prosser High School is part of Prosser School District.
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