Districts in Costilla County2 districts, sorted by rating
| District | City | Rating | Zip Codes |
|---|---|---|---|
| Sierra Grande School District R-30 | Sierra Grande | 2/10 Poor · 13th pct | 2 |
| Centennial School District R-1 | Centennial | 1/10 Poor · 8th pct | 4 |
School Districts in Costilla County, Colorado
Costilla County has 2 public school districts covering 6 zip codes. The top-rated district in Costilla County is Sierra Grande School District R-30 (2/10). Ratings are based on the share of students proficient in reading and math on state assessments (Colorado CMAS 2025 for most districts), ranked against all districts in Colorado. Directory details come from NCES CCD 2024–25.
Enter your zip code on any page to confirm your exact district assignment — district boundaries are address-specific and may not follow county or city lines.