The top reported proficiency rate is 19% in Science. The lowest is 16% in English language arts.
Original Research by School Decision on Centennial School
Centennial School in San Luis is the only school in Centennial School District No. R-1, serving students from pre-kindergarten through twelfth grade under one roof in a remote, high-altitude valley near the New Mexico border. This is a community school in the truest sense, drawing almost entirely from a town that is the oldest continuously inhabited settlement in Colorado, and its character is inseparable from the place it sits.
The student body is predominantly Hispanic, reflecting the deep Hispano roots of the San Luis Valley, with a modest share of white students and a very small number of Native Hawaiian or Pacific Islander students. A large majority of students qualify for free or reduced-price lunch, a rate well above the national average and consistent with the economic challenges that define much of the surrounding area, where poverty is widespread and agriculture remains the dominant, if strained, economic activity. The town itself is tiny and isolated, with a flat to declining growth trajectory, limited commercial activity, and no major new housing developments identified. Families considering this school should understand they are looking at a rural, economically modest setting with few of the amenities or growth pressures found in Colorado's Front Range communities.
State assessment results from the most recent testing year show that proficiency rates in math and English language arts for students in grades three through eight are in the modest range. Scores for eighth-grade science, which were reportable, fell in a similar range. A small number of fifth-grade science results were suppressed for privacy due to a very small tested population, which is common in schools of this size. Compared to other districts within Costilla County, Centennial School's overall proficiency across tested subjects and grades places it near the top of a very small field, but this positioning reflects a comparison set of just two districts. The district itself has been under state scrutiny: its accreditation rating dropped and has remained at the lowest level, with a turnaround plan required, a designation that means the state has determined that performance has been low for multiple years. A parent would want to discuss directly with the school or district what this turnaround plan entails and how it is affecting classroom instruction.
Because the school covers all grades, there is no separate high school to measure a graduation rate against. The data available did not include chronic absenteeism, staffing ratios, or course access information, so a parent would need to ask the school directly about these areas. The district has publicly reported that it has developed an innovation lab focused on technological skills, with the aim of preparing students for post-graduation opportunities without having to leave the community. This suggests an intentional effort to build career and technology pathways within the constraints of a very small, resource-limited district.
Housing in the area is dramatically less expensive than both the state and national medians, which is a direct reflection of the local economy and the area's remoteness. For a family already rooted in the San Luis Valley, Centennial School is the only public option. For a family considering moving to the area, the trade-offs are clear: a deeply traditional, small-town setting with affordable housing, but also a district under a state turnaround plan, very limited local employment, and test scores that are lower than what most Colorado schools report. The school's size means that every student is known, and the pre-K-through-12 structure means siblings can attend the same campus, but the academic challenges are real and publicly documented.
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