For the 2026 school year, there are 8 public high schools serving 809 students in Rio Grande County, CO.
The top-ranked public high schools in Rio Grande County, CO are Byron Syring Delta Center, The Academic Recovery Center Of San Luis Valley and Monte Vista On-line Academy. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Rio Grande County, CO public high schools have an average math proficiency score of 21% (versus the Colorado public high school average of 34%), and reading proficiency score of 33% (versus the 53% statewide average). High schools in Rio Grande County have an average ranking of 3/10, which is in the bottom 50% of Colorado public high schools.
Rio Grande County, CO public high school have a Graduation Rate of 78%, which is less than the Colorado average of 82%.
The school with highest graduation rate is Del Norte High Jr./sr. High School, with ≥90% graduation rate. Read more about public school graduation rate statistics in Colorado or national school graduation rate statistics.
Minority enrollment is 67% of the student body (majority Hispanic), which is more than the Colorado public high school average of 51% (majority Hispanic).
Best Public High Schools in Rio Grande County (2026)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Quick Facts
Rank: #11.
Byron Syring Delta Center
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
8/
Top 30%10
345 Prospect
Monte Vista, CO 81144
(719) 852-2212
Monte Vista, CO 81144
(719) 852-2212
Gr: 9-12 | 51 students Student-teacher ratio: 51:1 Minority enrollment: 75%
Rank: #22.
The Academic Recovery Center Of San Luis Valley
Alternative School
(Math: <50% | Reading: <50% )
Rank:
Rank:
8/
Top 30%10
550 S. Sylvester Avenue
Center, CO 81125
(719) 754-2859
Center, CO 81125
(719) 754-2859
Gr: 9-12 | 16 students Minority enrollment: 94%
Rank: #33.
Monte Vista On-line Academy
Alternative School
(Math: ≤20% | Reading: ≥50%)
Rank:
Rank:
5/
Bottom 50%10
345 East Prospect
Monte Vista, CO 81144
(719) 852-2212
Monte Vista, CO 81144
(719) 852-2212
Gr: 6-12 | 43 students Student-teacher ratio: 11:1 Minority enrollment: 42%
Rank: #44.
Sargent Senior High School
(Math: ≤20% | Reading: 40-59%)
Rank:
Rank:
5/
Bottom 50%10
7090 North County Road 2 East
Monte Vista, CO 81144
(719) 852-4025
Monte Vista, CO 81144
(719) 852-4025
Gr: 9-12 | 81 students Student-teacher ratio: 9:1 Minority enrollment: 35%
Rank: #55.
Del Norte High Jr./sr. High School
(Math: 20-24% | Reading: 30-34%)
Rank:
Rank:
4/
Bottom 50%10
950 French Street
Del Norte, CO 81132
(719) 657-4050
Del Norte, CO 81132
(719) 657-4050
Gr: 7-12 | 173 students Student-teacher ratio: 12:1 Minority enrollment: 62%
Rank: #66.
Center High School
(Math: ≤20% | Reading: 21-39%)
Rank:
Rank:
3/
Bottom 50%10
550 S. Sylvester Avenue
Center, CO 81125
(719) 754-2232
Center, CO 81125
(719) 754-2232
Gr: 9-12 | 153 students Student-teacher ratio: 12:1 Minority enrollment: 93%
Rank: #77.
Monte Vista Senior High School
(Math: 11-19% | Reading: 20-29%)
Rank:
Rank:
2/
Bottom 50%10
295 East Prospect
Monte Vista, CO 81144
(719) 852-3586
Monte Vista, CO 81144
(719) 852-3586
Gr: 9-12 | 272 students Student-teacher ratio: 14:1 Minority enrollment: 73%
Rank: n/an/a
550 South Sylvester
Center, CO 81125
(719) 754-3442
Center, CO 81125
(719) 754-3442
Gr: 9-12 | 23 students Student-teacher ratio: 23:1 Minority enrollment: 78%
Frequently Asked Questions
What are the top-ranked public high schools in Rio Grande County, CO?
The top-ranked public high schools in Rio Grande County, CO include Byron Syring Delta Center, The Academic Recovery Center Of San Luis Valley and Monte Vista On-line Academy.
How many public high schools are located in Rio Grandeunty?
8 public high schools are located in Rio Grandeunty.
What is the racial composition of students in Rio Grandeunty?
Rio Grandeunty public high schools minority enrollment is 67% of the student body (majority Hispanic), which is more than the Colorado public high schools average of 51% (majority Hispanic).
Recent Articles
AI Report Cards: Should Schools Evaluate AI Use?
Explore whether schools should assess student AI use, the benefits, risks, and what responsible AI report cards could look like in 2026.
The Parent’s Guide to School Cell Phone Bans in 2026
Learn how school cell phone bans work in 2026, why districts are adopting them, and what parents should expect.
Parental Involvement in Public Schools: 2026 Update
Explore the latest 2026 trends, research, and strategies shaping parental involvement in public schools and student success.