For the 2025 school year, there are 2 public schools serving 488 students in Costilla County, CO.
The top ranked public schools in Costilla County, CO are Sierra Grande K-12 School and Centennial School. Overall testing rank is based on a school's combined math and reading proficiency test score ranking.
Costilla County, CO public schools have an average math proficiency score of 9% (versus the Colorado public school average of 32%), and reading proficiency score of 22% (versus the 45% statewide average). Schools in Costilla County have an average ranking of 1/10, which is in the bottom 50% of Colorado public schools.
Minority enrollment is 84% of the student body (majority Hispanic), which is more than the Colorado public school average of 50% (majority Hispanic).
Best Public Schools in Costilla County (2025)
School
(Math and Reading Proficiency)
(Math and Reading Proficiency)
Location
Grades
Students
Rank: #11.
Sierra Grande K-12 School
(Math: 10-14% | Reading: 20-24%)
Rank:
Rank:
2/
Bottom 50%10
17523 East Highway 160
Blanca, CO 81123
(719) 379-3257
Blanca, CO 81123
(719) 379-3257
Grades: PK-12
| 302 students
Rank: #22.
Centennial School
(Math: ≤5% | Reading: 20-24%)
Rank:
Rank:
1/
Bottom 50%10
909 North Main Street
San Luis, CO 81152
(719) 672-3322
San Luis, CO 81152
(719) 672-3322
Grades: PK-12
| 186 students
Costilla County Public Schools (Closed)
School
Location
Grades
Students
909 North Main Street
San Luis, CO 81152
(719) 672-3322
San Luis, CO 81152
(719) 672-3322
Grades: PK-5
| 107 students
909 North Main Street
San Luis, CO 81152
(719) 672-3322
San Luis, CO 81152
(719) 672-3322
Grades: 6-8
| 54 students
17523 East Hwy 160
Blanca, CO 81123
(719) 379-3257
Blanca, CO 81123
(719) 379-3257
Grades: K-5
| 114 students
17523 East Hwy 160
Blanca, CO 81123
(719) 379-3257
Blanca, CO 81123
(719) 379-3257
Grades: 6-8
| 65 students
Frequently Asked Questions
What are the top ranked public schools in Costilla County, CO?
The top ranked public schools in Costilla County, CO include Sierra Grande K-12 School and Centennial School.
How many public schools are located in Costillaunty?
2 public schools are located in Costillaunty.
What is the racial composition of students in Costillaunty?
Costillaunty public schools minority enrollment is 84% of the student body (majority Hispanic), which is more than the Colorado public schools average of 50% (majority Hispanic).
Which public schools in Costillaunty are often viewed compared to one another?
Popular comparisons of public schools in Costillaunty include: Sierra Grande K-12 School vs. Centennial School, Centennial School vs. Sierra Grande K-12 School
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