Douglas County Re 1 · Highlands Ranch · elementary (grades 3–5) and middle (grades 6–8)
Elementary grades (grades 3–5)
+10.2
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Stone Mountain Elementary scored 6.0 points above expected in English and 14.4 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 79th percentile statewide after adjusting for demographics (raw: 97th), and #10 of 44 neighborhood elementary schools in Douglas County Re 1.
English vs. expected
+6.0
±2.6 pts · 79th pct. adjusted
English growth
62
median growth percentile · 88th among look-alikes
Math vs. expected
+14.4
±2.4 pts · 97th pct. adjusted
Math growth
59
median growth percentile · 40th among look-alikes
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+6.3
+4.9
+6.9
English growth (MGP)
62
60
65
Math vs. expected (pts)
+13.5
+14.3
+15.5
Math growth (MGP)
62
58
56
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.
Middle grades (grades 6–8)
+16.4
scale-score points vs. expected (Eng + math avg.)
Compared with Colorado schools serving similar students, Stone Mountain Elementary scored 17.7 points above expected in English and 15.0 points above expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 96th percentile statewide after adjusting for demographics (raw: 100th), and #4 of 39 neighborhood middle schools in Douglas County Re 1.
English vs. expected
+17.7
±6.3 pts · 96th pct. adjusted
English growth
—
median growth percentile
Math vs. expected
+15.0
±4.4 pts · 94th pct. adjusted
Math growth
—
median growth percentile
Met or exceeded expectations, by year
By year
2024
2025
2026
English vs. expected (pts)
+24.0
+19.4
+11.0
English growth (MGP)
—
—
—
Math vs. expected (pts)
+16.7
+19.4
+10.0
Math growth (MGP)
—
—
—
Only 90% 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 elementary schools.
Neighborhood family income (families with children near the school, NCES): 7.0× the poverty line. Enrollment (K–12): 481. 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.