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Centennial School District R-1, Colorado

Centennial School District R-1 is a unified school district in Costilla County, Colorado, for grades Pre-K to 12. About 1,916 people live in it (2020–2024 estimate). It covers 667 sq mi (1,729 km²) of land.

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Centennial School District R-1 in Colorado
Sanford School District 6J
Centennial School District R-1 and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Population, 2020–2024 estimate
1,916 ± 185
Grades
Pre-K to 12
Type
Unified school district
County
Costilla County
Land area
667 sq mi (1,729 km²)
Median household income
$33,409 ± $13,371
Median home value
$151,800 ± $19,146
Water area
1.95 sq mi (5.06 km²)
State
Colorado
Census code (GEOID)
0806360
Coordinates (central point)
37.136856, -105.447172
Check a point in the school district finder

These coordinates mark a central point for the district, not a school or an address. Population, income and home value: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 20, 2026.

Towns, townships and communities in Centennial School District R-1, largest first

  1. San Luis (town)560 people
  2. San Acacio (CDP)61 people

A town, township, city or borough is listed when at least half its land is in the district; a community, when its central point is. Near a district line, an address can belong to the district next door.

Bordering unified school districts, nearest first

  1. Sierra Grande School District R-3021 mi north
  2. Sanford School District 6J22 mi northwest
  3. Questa Independent Schools, New Mexico23 mi south
  4. Primero Reorganized School District 227 mi east
  5. La Veta School District RE-232 mi northeast
  6. Cimarron Public Schools, New Mexico39 mi southeast
  7. South Conejos School District RE-1042 mi west

These share a boundary with Centennial School District R-1. Distances are straight lines between central points.

Before using this answer for enrollment

A district boundary doesn’t decide which school a student attends; the district’s attendance zones and rules do. Confirm the full address and grade with Centennial School District R-1 before you rely on it.

See its schools and enrollment on NCES ↗

Find the school district where you are now or find your town or township.