Serving 1,339 students in grades 9-12, Lewiston High School ranks in the bottom 50% of all schools in Idaho for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 35% (which is lower than the Idaho state average of 42%). The percentage of students achieving proficiency in reading/language arts is 54% (which is lower than the Idaho state average of 55%).
The student:teacher ratio of 18:1 is higher than the Idaho state level of 17:1.
Minority enrollment is 11% of the student body (majority Hispanic), which is lower than the Idaho state average of 27% (majority Hispanic).
Quick Stats (2025)
Grades: 9-12
Enrollment: 1,339 students
Student:Teacher Ratio: 18:1
Minority Enrollment: 11%
Graduation Rate
: 93% (Top 10% in ID)
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 35% (Btm 50%)
Reading Proficiency
: 54% (Top 50%)
Science Proficiency
: 49% (Top 50%)
Source: National Center for Education Statistics (NCES), ID Dept. of Education
Lewiston High School ranks within the bottom 50% of all 709 schools in Idaho (based off of combined math and reading proficiency testing data).
The diversity score of Lewiston High School is 0.21, which is less than the diversity score at state average of 0.43. The school's diversity has stayed relatively flat over five school years.
Lewiston High School is ranked #404 out of 709 schools, which ranks it among the bottom 50% of public schools in Idaho.
What schools are Lewiston High School often compared to?
Lewiston High Schoolis often viewed alongside schools like Highland School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
35% of students have achieved math proficiency (compared to the 42% ID state average), while 54% of students have achieved reading proficiency (compared to the 55% ID state average).
What is the graduation rate of Lewiston High School?
The graduation rate of Lewiston High School is 93%, which is higher than the Idaho state average of 80%.
How many students attend Lewiston High School?
1,339 students attend Lewiston High School.
What is the racial composition of the student body?
89% of Lewiston High School students are White, 5% of students are Two or more races, 4% of students are Hispanic, 1% of students are American Indian, and 1% of students are Black.
What is the student:teacher ratio of Lewiston High School?
Lewiston High School has a student ration of 18:1, which is higher than the Idaho state average of 17:1.
What grades does Lewiston High School offer ?
Lewiston High School offers enrollment in grades 9-12
What school district is Lewiston High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 1,339 students
Student:Teacher Ratio: 18:1
Minority Enrollment: 11%
Graduation Rate
: 93% (Top 10%)
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 35% (Btm 50%)
Reading Proficiency
: 54% (Top 50%)
Science Proficiency
: 49% (Top 50%)
Source: National Center for Education Statistics (NCES), ID Dept. of Education
