Delta High School
🇺🇸 Official data · 2025Delta, Colorado 81416 · Delta County Joint District No. 50
#204 of 307 high schools in Colorado
#11238 of 16,910 nationally
About Delta High School
Delta High School is a public high located in Delta, in the Delta County Joint District No. 50 school district of Colorado, United States. It caters for Grades 9–12. In 2025 it enrolled 626 students. Traditional public schools run by a school district; free to attend.
Its Success Index (US) is 38.8 out of 100, placing it in the lower 50% of high schools in United States and 204th of 307 ranked high schools in Colorado. Its strongest component is community advantage (fewer free/reduced-price lunch) (49th percentile), and its weakest is math proficiency (30th percentile).
Other published figures: enrollment 626.
There are 5 schools in Delta; Delta High School ranks 1st of 4 scored schools there.
Success Index (US) breakdown
Each component is a percentile against high schools across United States.
- Math proficiency (30%)27%
- Reading proficiency (30%)47%
- Community advantage (fewer free/reduced-price lunch) (25%)51.9%
- Students per teacher (15%)16.1
The Success Index (US) summarises published data about a school community. It is not a measure of teaching quality. Read the methodology.
Published measures
All figures published for Delta High School by the official sources.
- Enrollment
- 626
- Students enrolled in the latest NCES directory year.
- Free/reduced-price lunch
- 51.9%
- Share of students eligible for free or reduced-price lunch.
- Students per teacher
- 16.1
- Enrollment divided by FTE teachers; not class size.
- Reading proficiency
- 47%
- Share of tested students proficient or above (all students, all grades).
- Math proficiency
- 27%
- Share of tested students proficient or above (all students, all grades).
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Schools near Delta High School
Closest schools by straight-line distance, with their Success Index (US).
Lincoln Elementary School
Delta · Public elementary · Grades K–5
371 students · 1.1 km away
Garnet Mesa Elementary School
Delta · Public elementary · Grades K–5
488 students · 1.5 km away
Delta Middle School
Delta · Public middle · Grades 6–8
498 students · 1.7 km away
Backpack Early Learning Academy
Delta · Public other · Grades PK–PK
188 students · 1.8 km away
Olathe Elementary School
Olathe · Public elementary · Grades PK–5
424 students · 14 km away
Olathe Middle/High School
Olathe · Public high · Grades 6–12
499 students · 15 km away
Similar schools
Public high schools in Colorado with a comparable Enrollment.
Denver Online
Denver · Public high · Grades 6–12
611 students
Jefferson Junior/Senior High School
Edgewater · Public high · Grades 7–12
601 students
Weld Central Senior High School
Keenesburg · Public high · Grades 9–12
651 students
Montezuma-Cortez High School
Cortez · Public high · Grades 9–12
598 students
Bruce Randolph School
Denver · Public high · Grades 6–12
663 students
Elizabeth High School
Elizabeth · Public high · Grades 9–12
668 students
Frequently asked questions
Is Delta High School a good school?
Delta High School has a Success Index (US) of 38.8 out of 100 (Lower 50% of high schools in United States) and ranks #204 of 307 in Colorado. The index summarises published data about the school community and, where available, attainment; it does not measure teaching quality, so visit the school and ask about support at your child's level.
Where does Delta High School rank in Colorado?
Delta High School ranks #204 of 307 high schools in Colorado and #11238 of 16,910 nationally on the Success Index (US) (2025 data).
How many students attend Delta High School?
Delta High School had 626 students in 2025.
Is Delta High School a elementary school or a high school?
Delta High School is classified as a high covering Grades 9–12. It is a public school.
What other schools are near Delta High School?
There are 6 schools within 15 km of Delta High School; they are listed on this page with their Success Index (US) and distance, and can be compared side by side.