Average
#772 of 1,815 schools in CO
Top 43% in state
Sierra Grande K-12 School
School · Sierra Grande School District No. R-30
17523 EAST HIGHWAY 160, Blanca, CO 81123
Enrollment
302
Student-Teacher
15.9:1
Score
6.7
Grades
Pre-K – 12th
Enrollment
302
Student-Teacher
15.9:1
Score
6.7
Grades
Pre-K – 12th
Updated
2022-23
Updated 2022-23
How this school compares
Colorado schools
#28 of 130
School environment
8.7 / 10
Exceptional
About Sierra Grande K-12 School
Sierra Grande K-12 School is a regular public school located in the remote rural area of Blanca, Colorado. Serving students from pre-kindergarten through 12th grade, the school has an enrollment of 302 students and boasts a student-teacher ratio of 15.9:1, with 19 full-time equivalent teachers on staff. While Sierra Grande K-12 School’s academic performance currently ranks in the lower half among Colorado schools (at #1320 out of 1831), it is focusing on providing a supportive learning environment for its diverse student body.
The school’s ELA and reading proficiency stands at 26% above average, while math proficiency reaches 19%. With room for academic growth, Sierra Grande K-12 School continues to emphasize student development and community support. Set against the backdrop of Costilla County's rural landscape, Sierra Grande K-12 School is deeply rooted in its local community.
The school’s setting offers a unique environment where students are part of a tight-knit neighborhood that values education and personal growth.
What Parents Should Know
Located in a rural area, Sierra Grande K-12 School may involve longer commutes for some families. Rural schools often serve as community anchors and may have smaller class sizes, but parents should consider transportation logistics, after-school program availability, and access to specialized services.
Score Breakdown
Full Profile · 4/4 metricsView breakdown
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Sierra Grande K-12 School — Students at Sierra Grande K-12 School score 20% proficient, which is below what's typical for similar communities (expected: 21%).
Equity & Diversity
Shown separately, not included in overall scoreFree/Reduced Lunch
81.8%
Students qualifying for federal meal assistance
Test Scores CO CMAS (2024-25)
Based on 16 test records from CO state assessments. About our data
Proficiency Trend
→ StableAverage proficiency (% at or above grade level) across Math & ELA over time.
* COVID-affected year — test participation was uneven nationwide. This data is weighted at 50% in the Growth score calculation.
Source: EdFacts (NCES) and state assessment data. Growth score: 7.0/10.
How Sierra Grande K-12 School Compares
See how Sierra Grande K-12 School performs across key quality dimensions compared to state benchmarks.
Funding & Resources
Performance Trends
Math proficiency has declined from 22% (2019) to 15.45% (2025). Reading/ELA proficiency has declined from 27% (2019) to 24.39% (2025).
Location
17523 EAST HIGHWAY 160, Blanca, CO 81123
Nearby Alternatives
Families considering Sierra Grande K-12 School may also want to explore other schools in the area. Manassa Elementary School (rated 8.7/10, 31.9 miles away, in nearby Manassa), which scores notably higher. Another option is Sangre de Cristo Elementary School (rated 8.3/10, 28.8 miles away, in nearby Mosca), which scores notably higher. Additionally, Sangre de Cristo Undivided High School (rated 7.0/10, 28.8 miles away, in nearby Mosca), with a very similar rating. For more schools in Blanca, see our Blanca schools guide .
Nearby Schools
17 within 31.9 mi| School | Distance | Rating |
|---|---|---|
| Centennial School San Luis | 15.5 mi | 5.6 |
| TRINITY LUTHERAN SCHOOL Alamosa | 23.4 mi | — |
| Alamosa Elementary School 3-5 Alamosa | 23.6 mi | 4.6 |
| Alamosa Elementary School K-2 Alamosa | 23.7 mi | 6.5 |
| Ortega Middle School Alamosa | 23.8 mi | 5.3 |
| Alamosa Online Alamosa | 23.9 mi | — |
| Alamosa Alternative Education School Alamosa | 23.9 mi | — |
| SUNSHINE CHRISTIAN SCHOOL Alamosa | 24.3 mi | — |
| Alamosa High School Alamosa | 24.3 mi | 6.7 |
| La Veta Elementary School La Veta | 25.1 mi | 4.6 |
| La Veta Junior-Senior High School La Veta | 25.1 mi | 5.7 |
| Gardner Valley School Gardner | 29.0 mi | 5.9 |
| Sanford Elementary School Sanford | 27.6 mi | 6.8 |
| Sanford Junior/Senior High School Sanford | 27.6 mi | 4.9 |
| Sangre de Cristo Elementary School Mosca | 28.8 mi | 8.3 |
| Sangre de Cristo Undivided High School Mosca | 28.8 mi | 7.0 |
| Manassa Elementary School Manassa | 31.9 mi | 8.7 |
Neighborhood Census ACS (2019-2023)
Census data for ZIP 81123 (ACS 2019-2023 5-Year Estimates) · Data sources
Median Income
$37,173
Median Home Value
$123,800
Population
726
College Educated
17.4%
Homeownership
81.8%
Poverty Rate
22.3%
Median Age
48.3
Community Profile
The community surrounding Sierra Grande K-12 School has a median household income of $37,173. It is a community where 17% of adults hold a bachelor's degree or higher. The median home value in the area is $123,800. The area has a poverty rate of 22.3%, indicating some economic challenges in the community. Source: U.S. Census ACS 2022 5-Year Estimates.
Similar Schools
Schools in the same state with comparable level, size, and ratings
| School | Rating |
|---|---|
| Holly School Holly, CO | 6.5 |
| MILE HIGH ACADEMY Highlands Ranch, CO | 6.9 |
| SHINING MOUNTAIN WALDORF SCHOOL Boulder, CO | 6.9 |
| FRONT RANGE CHRISTIAN SCHOOL Littleton, CO | 7.0 |
| Hoehne Schools Hoehne, CO | 6.4 |
| PSD Global Academy Fort Collins, CO | 6.4 |
Frequently Asked Questions
Common questions about Sierra Grande K-12 School
What grades does Sierra Grande K-12 School serve?
Sierra Grande K-12 School serves students in grades Pre-K through 12th.
How many students attend Sierra Grande K-12 School?
Sierra Grande K-12 School has an enrollment of approximately 302 students.
What is the student-teacher ratio at Sierra Grande K-12 School?
The student-teacher ratio at Sierra Grande K-12 School is 15.9:1. A lower ratio generally means more individual attention per student. The national average is approximately 16:1 for public schools.
How does Sierra Grande K-12 School rank in CO?
Sierra Grande K-12 School is ranked #772 out of 1,815 schools in CO.
What is Sierra Grande K-12 School's MySchoolScout rating?
Sierra Grande K-12 School has a composite rating of 6.7 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.
What are the test scores at Sierra Grande K-12 School?
Based on the most recent state assessment data, Sierra Grande K-12 School has 19.4% math proficiency and 26.0% reading/ELA proficiency.
Is Sierra Grande K-12 School a charter school?
No, Sierra Grande K-12 School is not a charter school. It is a traditional public school operated by the local school district.
Is Sierra Grande K-12 School a Title I school?
No, Sierra Grande K-12 School is not currently a Title I school.
What does the Free & Reduced Lunch percentage mean for Sierra Grande K-12 School?
81.8% of students at Sierra Grande K-12 School qualify for free or reduced-price lunch. This is a commonly used indicator of economic need and provides important context when interpreting test scores.
Quick Facts NCES CCD (SY 2022-23)
- Grades
- Pre-K – 12th
- Enrollment
- 302
- Student-Teacher Ratio
- 15.9:1
- Teachers (FTE)
- 19
- Free/Reduced Lunch
- 81.8%
- Type
- regular
- Setting
- Remote Rural
- County
- Costilla County
- Phone
- (719) 379-3257
- Data Year
- 2023–2024
Resources & Links
District
Sierra Grande School District No. R-30- District Enrollment
- 302
- Schools in District
- 1
- Per-Pupil Spending
- $17,862
- District Rank
- #1 of 1
How We Rate Schools
Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.
Read our full methodologyRelated reading
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