Summary:
ZIP code 81091 in rural southern Colorado is served by a single high school: Primero Junior-Senior High School, a combined middle and high school for grades 6–12 with 102 students enrolled in the Primero Reorganized School District No. 2. Because this is the only high school in the area, all insights focus on its performance, trends, and comparison to state averages.
Primero shows clear strengths in student engagement and literacy. The school posted a 100% graduation rate and 0% dropout rate in the most recent school-level reporting, and its chronic absenteeism rate of 21.9% is well below the state average of 28.4%. Literacy results are encouraging: 10th-grade PSAT Reading/Writing proficiency reached 75%, a full 11 points above the state, and all-grades ELA proficiency improved from 32.7% to 39.1% between 2024–2025 and 2025–2026, even as the district average declined. Eighth-grade science also topped the state (38.9% vs. 35.4%). However, math remains a major concern. All-grades math proficiency is just 21.7% compared to 37.3% statewide, 8th-grade math sits at a mere 16.7% (state: 37.8%), and 11th-grade SAT Math proficiency is 25% versus 32% statewide. Upper-level science also lags, with only 17.6% of 11th graders proficient versus 24.8% statewide.
The school’s statewide rank has slipped notably, from the 65th percentile in 2023–2024 to the 31st percentile in 2025–2026, dropping from 3 stars to 2 stars. This decline happened even as ELA and math scores improved, likely reflecting the volatility of a very small school where a handful of students can swing percentages dramatically. With a favorable student-teacher ratio of 11.6:1 and a free/reduced lunch rate of 26.47%, Primero offers a close-knit environment with strong graduation outcomes. The district itself ranks 70th out of 115 Colorado districts. For parents, the picture is mixed: solid literacy and engagement, but persistent math challenges and upper-level science weakness that will need targeted attention.
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