Compared with Colorado schools serving similar students, Mount Carbon Elementary School scored 0.9 points below expected in English and 3.5 points below expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 48th percentile statewide after adjusting for demographics (raw: 79th), and #41 of 77 neighborhood elementary schools in Jefferson County R-1. The difference is within normal year-to-year variation.
English vs. expected
−0.9
±4.7 pts · 48th pct. adjusted
English growth
49
median growth percentile · 20th among look-alikes
Math vs. expected
−3.5
±4.9 pts · 34th pct. adjusted
Math growth
39
median growth percentile · 0th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
−4.5
−2.6
+4.9
English growth (MGP)
37
44
68
Math vs. expected (pts)
−8.2
−3.7
+2.0
Math growth (MGP)
33
40
46
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 elementary schools.
Neighborhood family income (families with children near the school, NCES): 4.4× the poverty line. Enrollment (K–12): 301. 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.