Chiawana High School is a four-year public high school in Pasco, Washington, United States, the second traditional high school of Pasco School District #1. Opened in 2009 with 1600 students in grades 9, 10, and 11, CHS graduated its first senior class in 2011.
Serving 3,163 students in grades 8-12, Chiawana Senior 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 19% (which is lower than the Washington state average of 41%). The percentage of students achieving proficiency in reading/language arts is 54% (which is higher than the Washington state average of 53%).
The student:teacher ratio of 21:1 is higher than the Washington state level of 16:1.
Minority enrollment is 75% of the student body (majority Hispanic), which is higher than the Washington state average of 52% (majority Hispanic).
Quick Stats (2025)
- Grades: 8-12
- Enrollment: 3,163 students
- Student:Teacher Ratio: 21:1
- Minority Enrollment: 75%
- Graduation Rate: 85% (Top 50% in WA)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 19% (Btm 50%)
- Reading Proficiency: 54% (Top 50%)
- Science Proficiency: 47% (Btm 50%)
- Source: National Center for Education Statistics (NCES), WA Dept. of Education
School Overview
Chiawana Senior High School's student population of 3,163 students has grown by 17% over five school years.
The teacher population of 151 teachers has grown by 7% over five school years.
Grades Offered
Grades 8-12
(No virtual instruction)
(No virtual instruction)
Total Students
3,163 students
Gender %
Total Classroom Teachers
151 teachers
Year Founded
2009
Colors
Blue, Silver
School Rankings
Chiawana Senior High School ranks within the bottom 50% of all 2,113 schools in Washington (based off of combined math and reading proficiency testing data).
The diversity score of Chiawana Senior 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
#1400 out of 2113 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
(22-23)19%
41%
Reading/Language Arts Test Scores (% Proficient)
54%
53%
Science Test Scores (% Proficient)
47%
49%
Student : Teacher Ratio
21:1
16:1
American Indian
1%
1%
Asian
2%
9%
Hispanic
68%
26%
Black
1%
5%
White
25%
48%
Hawaiian
n/a
2%
Two or more races
3%
9%
All Ethnic Groups
Graduation Rate
(22-23)85%
84%
Eligible for Free Lunch
67%
49%
Eligible for Reduced Lunch
8%
8%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), WA Dept. of Education
School Notes
- School Mascot: Osprey
Profile last updated: 02/09/2025
Frequently Asked Questions
What is Chiawana Senior High School's ranking?
Chiawana Senior High School is ranked #1400 out of 2,113 schools, which ranks it among the bottom 50% of public schools in Washington.
What schools are Chiawana Senior High School often compared to?
Chiawana Senior High Schoolis often viewed alongside schools like Pasco Senior High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
19% of students have achieved math proficiency (compared to the 41% WA state average), while 54% of students have achieved reading proficiency (compared to the 53% WA state average).
What is the graduation rate of Chiawana Senior High School?
The graduation rate of Chiawana Senior High School is 85%, which is higher than the Washington state average of 84%.
How many students attend Chiawana Senior High School?
3,163 students attend Chiawana Senior High School.
What is the racial composition of the student body?
68% of Chiawana Senior High School students are Hispanic, 25% of students are White, 3% of students are Two or more races, 2% of students are Asian, 1% of students are American Indian, and 1% of students are Black.
What is the student:teacher ratio of Chiawana Senior High School?
Chiawana Senior High School has a student ration of 21:1, which is higher than the Washington state average of 16:1.
What grades does Chiawana Senior High School offer ?
Chiawana Senior High School offers enrollment in grades 8-12 (No virtual instruction).
What school district is Chiawana Senior High School part of?
Chiawana Senior High School is part of Pasco School District.
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