Summary:
Zip code 80651 serves the Platteville, Colorado area and contains just two schools: Platteville Elementary School (PK–5, 317 students) and South Valley Middle School (6–8, 143 students), both part of Weld County Reorganized School District No. Re-1, a 1-star district ranked 83rd out of 115 in Colorado, with no high school located within the zip code.
Both schools face significant academic challenges. Platteville Elementary ranks in the 20th percentile statewide (755 of 943) and earned 1 star, while South Valley Middle ranks in the 27th percentile (344 of 469) and also carries 1 star. Math is the biggest weakness at both schools: only 15% of elementary students and 13.1% of middle school students are proficient in math, compared to roughly 36–37% statewide. ELA proficiency is also low at about 25% in both schools, well below the state average of roughly 45%. At South Valley, ELA proficiency drops sharply as students advance, falling from 35.9% in 6th grade to just 19.6% in 8th grade, a pattern worth investigating.
There are some encouraging signs. Platteville Elementary is rebounding from a difficult 2024–2025 year, while South Valley improved from the 15th to the 27th percentile in its most recent ranking. South Valley's 6th-grade math proficiency (25.6%) is notably above the district average of 18.3%, proving stronger outcomes are possible even in a low-performing school. Chronic absenteeism runs 25.7% at the elementary and 28% at the middle school, both slightly better than the district (28.7%) and state (28.4%) averages. With favorable student-teacher ratios of 13.7-to-1 at the elementary and 10.9-to-1 at the middle school, class size is not the primary obstacle; poverty, attendance, and instructional challenges are more likely drivers. Families should also note both schools serve high-poverty populations, with over 60% of students qualifying for free or reduced lunch.
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