Serving 626 students in grades 9-12, Delta High School ranks in the top 50% of all schools in Colorado for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 30-34% (which is approximately equal to the Colorado state average of 33%). The percentage of students achieving proficiency in reading/language arts is 45-49% (which is approximately equal to the Colorado state average of 45%).
The student-teacher ratio of 16:1 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 51% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 626 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 41%
- Graduation Rate: 90-94% (Top 20% in CO)
- Overall Testing Rank: Top 50%
- Math Proficiency: 30-34% (Top 50%)
- Reading Proficiency: 45-49% (Top 50%)
- Science Proficiency: 15-19% (Btm 50%)
- Source: National Center for Education Statistics (NCES), CO Dept. of Education
Top Rankings
Delta High School ranks among the top 20% of public schools in Colorado for:
Category
Attribute
Graduation Rate
School Overview
Delta High School's student population of 626 students has stayed relatively flat over five school years.
The teacher population of 39 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
(No virtual instruction)
(No virtual instruction)
Total Students
626 students
Total Classroom Teachers
39 teachers
School Calendar
School Motto
Panther Pride
School Rankings
Delta High School ranks within the top 50% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).
The diversity score of Delta High School is 0.54, which is less than the diversity score at state average of 0.63. The school's diversity has stayed relatively flat over five school years.
Overall Testing Rank
#750 out of 1748 schools
(Top 50%)
(Top 50%)
Math Test Scores (% Proficient)
30-34%
33%
Reading/Language Arts Test Scores (% Proficient)
45-49%
45%
Science Test Scores (% Proficient)
(20-21)15-19%
29%
Student-Teacher Ratio
16:1
15:1
Asian
3%
3%
Hispanic
34%
37%
White
59%
49%
Two or more races
4%
5%
All Ethnic Groups
Graduation Rate
90-94%
82%
Eligible for Free Lunch
43%
39%
Eligible for Reduced Lunch
9%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CO Dept. of Education
Frequently Asked Questions
What is Delta High School's ranking?
Delta High School is ranked #750 out of 1,748 schools, which ranks it among the top 50% of public schools in Colorado.
What percent of students have achieved state testing proficiency in math and reading?
30-34% of students have achieved math proficiency (compared to the 33% CO state average), while 45-49% of students have achieved reading proficiency (compared to the 45% CO state average).
What is the graduation rate of Delta High School?
The graduation rate of Delta High School is 90-94%, which is higher than the Colorado state average of 82%.
How many students attend Delta High School?
626 students attend Delta High School.
What is the racial composition of the student body?
59% of Delta High School students are White, 34% of students are Hispanic, 4% of students are Two or more races, and 3% of students are Asian.
What is the student-teacher ratio of Delta High School?
Delta High School has a student ration of 16:1, which is higher than the Colorado state average of 15:1.
What grades does Delta High School offer ?
Delta High School offers enrollment in grades 9-12 (No virtual instruction).
What school district is Delta High School part of?
Delta High School is part of Delta County Joint District No. 50.
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