Sierra Grande K-12 School

As a low-enrollment unified-grade school in BLANCA, Colorado, Sierra Grande K-12 School hosts 307 students from grades pre-K through 12, overseen by Sierra Grande School District No. R-30. By comparison, Colorado's public schools average about 523 students each, so Sierra Grande K-12 School sits 41% below that benchmark.

Sierra Grande School District No. R-30 is the operating authority for Sierra Grande K-12 School, handling staffing, calendars, and reporting to the state department of education.

On the student-mix side, Sierra Grande K-12 School shows that 79% of the student body identifies as Hispanic. The remainder looks like 16% White, 4% multiracial. By comparison, Costilla County as a whole is about 55% Hispanic, so the school skews meaningfully more Hispanic than its surroundings.

Looking at the economic backdrop, Staff filings list 14 full-time-equivalent teachers, which works out to roughly 21.7:1 students per teacher. That figure is higher than the state norm's 14.3:1 average. An estimated 79% of students are eligible for free or reduced-price lunch, a commonly cited indicator of low-income enrollment.

On a residual basis (actual vs predicted given the student mix), Sierra Grande K-12 School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 18.7%; this one delivers 25.3%.

In the surrounding community, community-level numbers for Costilla County indicate the typical household earns roughly $36,861 per year, 25% of adults hold a bachelor's degree or higher, and the poverty rate sits near 20%. In all, Costilla County runs 2 public schools (combined enrollment of about 493 students), of which Sierra Grande K-12 School is one.

Nearest neighbor: Centennial School, around 15.4 miles off.

The campus sits in a small-town setting.

Over the past 7-year window. Looking back 7 years, enrollment at Sierra Grande K-12 School has rose 7%, going from 288 students in 2018 to 307 in 2025. Over the same period, the White share contracted from 21% to 16%. The student-to-teacher ratio rose from 13.1:1 in 2018 to 21.7:1 today.

On allk12, members of the Sierra Grande K-12 School community share and discuss open house dates, ride-share offers, and field-trip permission slips. Anyone with firsthand experience at this school can post or comment.