Summary:
Zip code 80005 in Arvada, Colorado is served by exactly one middle school — Oberon Middle School — which enrolls 704 students across grades 6 through 8 and is part of the Jefferson County School District No. R-1, a 4-star district ranked 24th out of 115 in Colorado.
Oberon Middle School is a high-performing and steadily improving school. It currently ranks 101st out of 469 Colorado middle schools (78th percentile, 4 stars) for the 2025–2026 school year, up from 131st just two years earlier — a climb of 30 positions. Academically, Oberon exceeds both district and state averages in every tested subject. On the 2025–2026 CMAS assessments, 59.0% of students were proficient in English Language Arts (14.3 points above the state), 50.2% in Math (12.9 points above the state), and 48.1% in 8th-grade Science (12.7 points above the state). Within the school, 7th grade is the strongest cohort in both ELA (65.9% proficiency) and Math (56.1%), while 6th grade is the weakest, particularly in Math at 43.3%. This makes ELA a clear schoolwide strength, while math — though still above state averages — is the relative area to watch, especially for incoming 6th graders.
Beyond test scores, Oberon shows a few cautionary but generally positive signs. Chronic absenteeism sits at 24.7%, which is better than the district (26.6%) and state (28.4%) rates but still means roughly one in four students misses significant school time. The school serves a relatively mixed-income population, with 28.27% of students eligible for free or reduced lunch, yet still achieves strong outcomes. The student-to-teacher ratio is 19.5:1, slightly high for a middle school, and the last reported dropout rate was a very low 0.2% (2021–2022). Overall, Oberon Middle School is a standout option in the 80005 area: a consistently 4-star school with strong ELA performance, above-average math and science, and an upward ranking trajectory — with chronic absenteeism and 6th-grade math as the main factors to monitor.
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