Compared with Colorado schools serving similar students, Jefferson Junior/Senior High School scored 14.9 points below expected in English and 12.2 points below expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 4th percentile statewide after adjusting for demographics (raw: 4th), and #33 of 35 neighborhood middle schools in Jefferson County R-1.
English vs. expected
−14.9
±2.9 pts · 4th pct. adjusted
English growth
38
median growth percentile · 5th among look-alikes
Math vs. expected
−12.2
±2.6 pts · 7th pct. adjusted
Math growth
42
median growth percentile · 29th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
−17.4
−14.2
−13.4
English growth (MGP)
34
44
36
Math vs. expected (pts)
−14.0
−12.3
−10.5
Math growth (MGP)
41
42
42
Only 84% of students took the tests; families who opt out may differ from those who test.
Among the 25 most similar schools statewide — English vs. expected (pts)
Most similar on neighborhood income and education, free/reduced lunch, English learners and special education. Blue: above expected; red: below; gray: within normal swings.
Who it serves
The measures behind the comparison
Bars: this school (the area around it for education). Black tick: average of Colorado middle schools.
Neighborhood family income (families with children near the school, NCES): 2.8× the poverty line. Enrollment (K–12): 569. Education is for adults aged 25–44 — the ages most likely to be parents — because the Census doesn’t publish parents’ education below the district level.
How to read this
Each school’s CMAS scores are compared with what Colorado schools serving similar students score, using a model fit across all neighborhood schools. “Vs. expected” is in CMAS scale-score points; growth is CDE’s median growth percentile (50 is typical). Full method and caveats.