Serving 307 students in grades Prekindergarten-12, Sierra Grande K-12 School ranks in the bottom 50% of all schools in Colorado for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 6-9% (which is lower than the Colorado state average of 33%). The percentage of students achieving proficiency in reading/language arts is 20-24% (which is lower than the Colorado state average of 45%).
The student-teacher ratio of 22:1 is higher than the Colorado state level of 15:1.
Minority enrollment is 84% of the student body (majority Hispanic), which is higher than the Colorado state average of 51% (majority Hispanic).
Quick Facts (2026-27)
- Grades: Prekindergarten-12
- Enrollment: 307 students
- Student-Teacher Ratio: 22:1
- Minority Enrollment: 84%
- Graduation Rate: 60-79% (Btm 50% in CO)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 6-9% (Btm 50%)
- Reading Proficiency: 20-24% (Btm 50%)
- Science Proficiency: ≤10% (Btm 50%)
- Attendance Zone: Sierra Grande K-12 School's attendance zone encompasses the entire district in Blanca, CO, covering approximately 561.6 square miles. Families typically drive 20-30 minutes to reach the school, with an average distance of 16 miles from the school to the edge of the zone, extending up to 22.7 miles at its furthest point.
- Source: National Center for Education Statistics (NCES), CO Dept. of Education
School Overview
Sierra Grande K-12 School's student population of 307 students has grown by 17% over five school years.
The teacher population of 14 teachers has declined by 36% over five school years.
Grades Offered
Grades Prekindergarten-12
(No virtual instruction)
(No virtual instruction)
Total Students
307 students
Total Classroom Teachers
14 teachers
Year Founded
2025
School Calendar
School Rankings
Sierra Grande K-12 School ranks within the bottom 50% of all 1,748 schools in Colorado (based off of combined math and reading proficiency testing data).
The diversity score of Sierra Grande K-12 School is 0.35, 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
#1583 out of 1748 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
6-9%
33%
Reading/Language Arts Test Scores (% Proficient)
20-24%
45%
Science Test Scores (% Proficient)
(20-21)≤10%
29%
Student-Teacher Ratio
22:1
15:1
American Indian
n/a
1%
Asian
n/a
3%
Hispanic
79%
37%
Black
1%
5%
White
16%
49%
Hawaiian
n/a
n/a
Two or more races
4%
5%
All Ethnic Groups
Graduation Rate
60-79%
82%
Chronically Absent Students
(22-23)31.3%
33.6%
Eligible for Free Lunch
70%
39%
Eligible for Reduced Lunch
9%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), CO Dept. of Education
School Notes
- School Mascot: Panthers
Frequently Asked Questions
What is Sierra Grande K-12 School's ranking?
Sierra Grande K-12 School is ranked #1583 out of 1,748 schools, which ranks it among the bottom 50% of public schools in Colorado.
What schools are Sierra Grande K-12 School often compared to?
Sierra Grande K-12 Schoolis often viewed alongside schools like Centennial School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
6-9% of students have achieved math proficiency (compared to the 33% CO state average), while 20-24% of students have achieved reading proficiency (compared to the 45% CO state average).
What is the graduation rate of Sierra Grande K-12 School?
The graduation rate of Sierra Grande K-12 School is 60-79%, which is lower than the Colorado state average of 82%.
How many students attend Sierra Grande K-12 School?
307 students attend Sierra Grande K-12 School.
What is the racial composition of the student body?
79% of Sierra Grande K-12 School students are Hispanic, 16% of students are White, 4% of students are Two or more races, and 1% of students are Black.
What is the student-teacher ratio of Sierra Grande K-12 School?
Sierra Grande K-12 School has a student ration of 22:1, which is higher than the Colorado state average of 15:1.
What grades does Sierra Grande K-12 School offer ?
Sierra Grande K-12 School offers enrollment in grades Prekindergarten-12 (No virtual instruction).
What school district is Sierra Grande K-12 School part of?
Sierra Grande K-12 School is part of Sierra Grande School District No. R-30.
School Reviews
5 10/10/2025
Great school if you use the opportunities given to you.
Review Sierra Grande K-12 School. Reviews should be a few sentences in length. Please include any comments on:
- Quality of academic programs, teachers, and facilities
- Availability of music, art, sports and other extracurricular activities
Recent Articles
How to Evaluate School Safety Beyond Headlines
Learn how to evaluate school safety beyond headlines by examining reliable data, school climate, emergency planning, bullying prevention, communication, student experiences, and everyday security practices before choosing a school.
Choosing a Public School for Executive Function Needs
Learn how to choose a public school for a child with executive function challenges by evaluating routines, classroom support, organization, accommodations, communication, transitions, and special education services before enrollment.
What School Climate Surveys Tell You Before Enrolling
Learn how school climate surveys reveal student safety, belonging, relationships, engagement, and support, and how families can interpret results carefully before choosing a public school for their child today.
