Serving 1,381 students in grades 9-12, Twin Falls High School ranks in the top 10% of all schools in Idaho for overall test scores (math proficiency is top 20%, and reading proficiency is top 20%).
The percentage of students achieving proficiency in math is 58% (which is higher than the Idaho state average of 41%). The percentage of students achieving proficiency in reading/language arts is 82% (which is higher than the Idaho state average of 55%).
The student-teacher ratio of 22:1 is higher than the Idaho state level of 17:1.
Minority enrollment is 23% of the student body (majority Hispanic), which is lower than the Idaho state average of 28% (majority Hispanic).
Quick Facts (26-27)
- Grades: 9-12
- Enrollment: 1,381 students
- Student-Teacher Ratio: 22:1
- Minority Enrollment: 23%
- Graduation Rate: 90% (Top 30% in ID)
- Overall Testing Rank: Top 10%
- Math Proficiency: 58% (Top 20%)
- Reading Proficiency: 82% (Top 5%)
- Science Proficiency: 51% (Top 30%)
- Attendance Zone: Twin Falls Senior High serves the southeast part of its school district in Twin Falls, ID, covering an area of approximately 50.9 square miles. Most students live within a 10-15 minute drive from the school, with the furthest edge of the zone located about 11.8 miles away.
- Source: National Center for Education Statistics (NCES), ID Dept. of Education
Top Rankings
Twin Falls High School ranks among the top 20% of public schools in Idaho for:
Category
Attribute
Overall Rank
Math Proficiency
Reading/Language Arts Proficiency
School Overview
Twin Falls High School's student population of 1,381 students has grown by 7% over five school years.
The teacher population of 64 teachers has grown by 8% over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
1,381 students
Showing 2016–2025. View full 39-year historical data
Total Classroom Teachers
64 teachers
Showing 2016–2025. View full 39-year historical data
Year Founded
1907
School Calendar
School Rankings
Twin Falls High School ranks within the top 10% of all 704 schools in Idaho (based off of combined math and reading proficiency testing data).
The diversity score of Twin Falls High School is 0.38, which is less than the diversity score at state average of 0.44. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#42 out of 704 schools
(Top 10%)
(Top 10%)
Showing 2012–2023. View full 14-year historical data
Math Test Scores (% Proficient)
58%
41%
Showing 2012–2023. View full 14-year historical data
Reading/Language Arts Test Scores (% Proficient)
82%
55%
Showing 2011–2022. View full 13-year historical data
Science Test Scores (% Proficient)
51%
41%
Student-Teacher Ratio
22:1
17:1
Showing 2016–2025. View full 39-year historical data
American Indian
1%
1%
Showing 2013–2025. View full 24-year historical data
Asian
2%
1%
Showing 2016–2025. View full 25-year historical data
Hispanic
16%
21%
Showing 2016–2025. View full 25-year historical data
Black
2%
1%
Showing 2016–2025. View full 20-year historical data
White
77%
72%
Showing 2016–2025. View full 25-year historical data
Two or more races
2%
4%
All Ethnic Groups
Showing 2016–2025. View full 25-year historical data
Graduation Rate
90%
81.1%
Chronically Absent Students
(22-23)6.7%
16.9%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
25%
32%
Showing 2016–2025. View full 38-year historical data
Eligible for Reduced Lunch
5%
7%
Showing 2016–2025. View full 27-year historical data
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), ID Dept. of Education
Profile last updated:
Frequently Asked Questions
What is Twin Falls High School's ranking?
Twin Falls High School is ranked #42 out of 704 schools, which ranks it among the top 10% of public schools in Idaho.
What schools are Twin Falls High School often compared to?
Twin Falls High Schoolis often viewed alongside schools like Canyon Ridge High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
58% of students have achieved math proficiency (compared to the 41% ID state average), while 82% of students have achieved reading proficiency (compared to the 55% ID state average).
What is the graduation rate of Twin Falls High School?
The graduation rate of Twin Falls High School is 90%, which is higher than the Idaho state average of 81.1%.
How many students attend Twin Falls High School?
1,381 students attend Twin Falls High School.
What is the racial composition of the student body?
77% of Twin Falls High School students are White, 16% of students are Hispanic, 2% of students are Asian, 2% of students are Black, 2% of students are Two or more races, and 1% of students are American Indian.
What is the student-teacher ratio of Twin Falls High School?
Twin Falls High School has a student ration of 22:1, which is higher than the Idaho state average of 17:1.
What grades does Twin Falls High School offer ?
Twin Falls High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Twin Falls High School part of?
Twin Falls High School is part of Twin Falls School District.
School Reviews
Review Twin Falls High School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
Can Public Schools Charge for Required Graduation Courses?
Can a public school charge for a course your child needs to graduate? Learn how state rules, course alternatives, summer programs, and fee waivers affect the answer, plus what parents should request before paying, accepting a substitute, or challenging a charge that threatens graduation plans.
Save Your Child's Work Before a School Account Closes
School accounts may close after graduation or a transfer, leaving important projects inaccessible. Learn what families should save, which deadlines to confirm, how to check exported files, and why shared links alone may not preserve your child's work for future applications, learning, or personal memories.
School Commute Time: When Distance Affects School Fit
Is your child's school commute becoming too demanding? Learn how to weigh educational benefits against daily strain, recognize warning signs, explore practical adjustments, and decide when a closer school fits.
