Serving 1,036 students in grades 9-12, Castle High School ranks in the top 50% of all schools in Hawaii for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 20% (which is lower than the Hawaii state average of 38%). The percentage of students achieving proficiency in reading/language arts is 69% (which is higher than the Hawaii state average of 52%).
The student:teacher ratio of 12:1 is lower than the Hawaii state level of 14:1.
Minority enrollment is 93% of the student body (majority Hispanic), which is higher than the Hawaii state average of 89% (majority Asian).
Quick Stats (2025)
Grades: 9-12
Enrollment: 1,036 students
Student:Teacher Ratio: 12:1
Minority Enrollment: 93%
Graduation Rate
: 81% (Btm 50% in HI)
Overall Testing Rank
: Top 50%
Math Proficiency
: 20% (Btm 50%)
Reading Proficiency
: 69% (Top 20%)
Science Proficiency
: 38% (Top 50%)
Source: National Center for Education Statistics (NCES), HI Dept. of Education
Castle High School ranks within the top 50% of all 292 schools in Hawaii (based off of combined math and reading proficiency testing data).
The diversity score of Castle High School is 0.76, which is less than the diversity score at state average of 0.80. The school's diversity has stayed relatively flat over five school years.
Castle High School is ranked #137 out of 292 schools, which ranks it among the top 50% of public schools in Hawaii.
What schools are Castle High School often compared to?
Castle High Schoolis often viewed alongside schools like Kalaheo High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
20% of students have achieved math proficiency (compared to the 38% HI state average), while 69% of students have achieved reading proficiency (compared to the 52% HI state average).
What is the graduation rate of Castle High School?
The graduation rate of Castle High School is 81%, which is lower than the Hawaii state average of 86%.
How many students attend Castle High School?
1,036 students attend Castle High School.
What is the racial composition of the student body?
36% of Castle High School students are Hawaiian, 21% of students are Hispanic, 21% of students are Two or more races, 15% of students are Asian, and 7% of students are White.
What is the student:teacher ratio of Castle High School?
Castle High School has a student ration of 12:1, which is lower than the Hawaii state average of 14:1.
What grades does Castle High School offer ?
Castle High School offers enrollment in grades 9-12
What school district is Castle High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 1,036 students
Student:Teacher Ratio: 12:1
Minority Enrollment: 93%
Graduation Rate
: 81% (Btm 50%)
Overall Testing Rank
: Top 50%
Math Proficiency
: 20% (Btm 50%)
Reading Proficiency
: 69% (Top 20%)
Science Proficiency
: 38% (Top 50%)
Source: National Center for Education Statistics (NCES), HI Dept. of Education
