Summary:
Zip code 80644 in Kersey, Colorado, contains one high school, Platte Valley High School, serving grades 9 through 12 with an enrollment of 331 students. As the only high school in the area, comparisons are made against state and district benchmarks, primarily from the Weld County School District No. Re-7. The school stands out for its high graduation rate of 95.3%, which exceeds the state average of 85.6%, and its favorable student-to-teacher ratio of 12.8:1.
Academically, Platte Valley shows clear strengths and some areas of concern. SAT math proficiency consistently outperforms the state by 10 percentage points, with 42% proficiency in 2025–2026 compared to the state's 32%. However, SAT reading and writing scores dropped dramatically from 63% to 46% in one year, falling below the state average of 60%. Science proficiency also declined from 31.7% to 24.3%, now slightly below the state average. Chronic absenteeism stands at 19.6%, which is better than the state's 28.4% but higher than the district's 14.3%. Nearly half of students (49.85%) qualify for free or reduced-price lunch, indicating a significant economically disadvantaged population.
Over the past three years, Platte Valley's state ranking has declined from the 66th percentile in 2023–2024 to the 49th percentile in 2025–2026, with its star rating dropping from 3 to 2 stars. This decline appears driven by volatility in reading and science scores, while math remains a competitive advantage. The school's high graduation rate, relatively low chronic absenteeism compared to the state, and small class sizes provide a strong foundation to address these academic challenges and stabilize performance in future years.
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