Centennial School
Public · Grades Pre-K–12 · 186 students
Sierra Grande K-12 School
17523 East Highway 160, Blanca, CO 81123
Grades
Pre-K–12
Other
Students
307
Enrolled 2024–25
Students per teacher
21.7 : 1
Full-time teachers
District
Sierra Grande School District No. R-30
Costilla County
Schola Grade F · Far below average
Letter grade (A–F) · compared with 63 Colorado K–8, K–12 and other combined schools · How we grade
Percentiles compare this school with other Colorado K–8, K–12 and other combined schools; the line marks the middle. Data: test scores 2021–22, graduation and absenteeism 2022–23 (U.S. Department of Education, EDFacts); coursework 2023–24 (Civil Rights Data Collection); staffing 2024–25 (NCES).
About Sierra Grande K-12 School
Sierra Grande K-12 School is a public school in Blanca, Colorado, serving grades Pre-K–12. It is part of Sierra Grande School District No. R-30. The school is located in a remote rural area in Costilla County.
In the 2024–25 school year, 307 students were enrolled, with about 21.7 students for every full-time teacher. Its Schola Grade is F (far below average), compared with 63 Colorado K–8, K–12 and other combined schools.
Grades & enrollment
Students per grade, 2024–25Grades Pre-K–12
Location & nearby schools
School details
- Type
- Public School · What this means
- Level
- Other
- Grades offered
- Pre-K–12
- Enrollment (2024–25)
- 307 students
- Students per teacher
- 21.7 to 1
- Charter school
- No
- Magnet school
- No
- Locale
- Rural — Remote
- School district
- Sierra Grande School District No. R-30
- County
- Costilla County
- NCES school ID
- 080414000572
Schools near Sierra Grande K-12 School
All 1 schools in Blanca →
Trinity Lutheran School
Private · Grades Pre-K–2 · 23 students
Alamosa Elementary School 3-5
Public · Grades 3–5 · 473 students
Alamosa Elementary School K-2
Public · Grades K–2 · 437 students
Ortega Middle School
Public · Grades 6–8 · 471 students
Alamosa Online
Public · Grades 6–12 · 29 students
School data comes from the U.S. Department of Education: the National Center for Education Statistics (NCES) Common Core of Data and EDGE school locations (2024–25) and Private School Survey (2023–24), the Civil Rights Data Collection (2023–24), and EDFacts (test results 2021–22; graduation and chronic absenteeism 2022–23), plus other public sources. Please contact the school to confirm enrollment, programs, and other details. How we source data.