Compared with Colorado schools serving similar students, Delta Middle School scored 11.0 points above expected in English and 2.3 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 85th percentile statewide after adjusting for demographics (raw: 58th), and #3 of 4 neighborhood middle schools in Delta County 50(J).
English vs. expected
+11.0
±1.7 pts · 85th pct. adjusted
English growth
54
median growth percentile · 83rd among look-alikes
Math vs. expected
+2.3
±1.9 pts · 62nd pct. adjusted
Math growth
44
median growth percentile · 38th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+11.9
+9.6
+11.7
English growth (MGP)
57
50
55
Math vs. expected (pts)
+3.2
+0.1
+3.7
Math growth (MGP)
48
39
43
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): 2.1× the poverty line. Enrollment (K–12): 479. 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.