Delta High School
Delta High School serves 632 students in grades 9-12.
Delta High School placed in the bottom 50% of all schools in Colorado for overall test scores (math proficiency is bottom 50%, and reading proficiency is top 50%) for the 2018-19 school year.
The percentage of students achieving proficiency in math is 25-29% (which is lower than the Colorado state average of 35%) for the 2018-19 school year. The percentage of students achieving proficiency in reading/language arts is 45-49% (which is approximately equal to the Colorado state average of 47%) for the 2018-19 school year.
The student:teacher ratio of 17:1 is higher than the Colorado state level of 15:1.
Minority enrollment is 41% of the student body (majority Hispanic), which is lower than the Colorado state average of 48% (majority Hispanic).
- Grades: 9-12
- Students: 632 students
- Student:Teacher Ratio: 17:1
- Minority Enrollment: 41%
- Graduation Rate: 90-94% (Top 20% in CO)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 25-29% (Btm 50%)
- Reading Proficiency: 45-49% (Top 50%)
- Source: National Center for Education Statistics (NCES), CO Dept. of Education
Delta High School's student population of 632 students has stayed relatively flat over five school years.
The teacher population of 38 teachers has stayed relatively flat over five school years.
Total Classroom Teachers
Students by Grade
Delta High School is ranked within the bottom 50% of all 1,783 schools in Colorado (based off of combined math and reading proficiency testing data) for the 2018-19 school year.
The diversity score of Delta High School is 0.54, which is less than the diversity score at state average of 0.61. The school's diversity has stayed relatively flat over five school years.
Definition of Terms 2020-2021 School Year Data
State Level (CO)
Overall Testing Rank
#933 out of 1783 schools
Math Test Scores (% Proficient)
Reading/Language Arts Test Scores (% Proficient)
Student : Teacher Ratio
Two or more races
All Ethnic Groups
Eligible for Free Lunch
Eligible for Reduced Lunch
School Statewide Testing
School District Name
Source: 2020-2021 (latest school year available) National Center for Education Statistics (NCES), CO Dept. of Education
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