School report card · CMAS 2024–2026

Lumberg Elementary SchoolDraft

Jefferson County R-1 · Edgewater · elementary (grades 3–5) and middle (grades 6–8)

Elementary grades (grades 3–5)

−15.8
scale-score points vs.
expected (Eng + math avg.)

Compared with Colorado schools serving similar students, Lumberg Elementary School scored 15.9 points below expected in English and 15.8 points below expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 2nd percentile statewide after adjusting for demographics (raw: 1st), and #76 of 77 neighborhood elementary schools in Jefferson County R-1.

English vs. expected
−15.9
±3.1 pts · 2nd pct. adjusted
English growth
45
median growth percentile · 52nd among look-alikes
Math vs. expected
−15.8
±2.7 pts · 3rd pct. adjusted
Math growth
38
median growth percentile · 24th among look-alikes
Met or exceeded expectations, by year
0%10%20%202420252026English 9%Math 11%
By year
202420252026
English vs. expected (pts)−12.3−18.7−17.0
English growth (MGP)425140
Math vs. expected (pts)−14.9−18.9−13.6
Math growth (MGP)284642
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.
Indian Peaks+17.9Godsman+9.1Columbine+7.0Mountain View+6.2Harmony Ridge P-8+4.8Edgewater+3.9Smith+2.7Foster Dual Language PK-8+1.8Eiber+0.9Garden Place Academy0.0Leroy Elementary−0.1Rocky Mountain−0.7Orchard Park Academy−1.5Tennyson Knolls Preparatory Sch…−4.9Josephine Hodgkins Leadership A…−5.4Longs Peak−6.1Arvada K-8−6.5Eastridge Community−7.1Kunsmiller Creative Arts Academy−7.2Joe Shoemaker School−7.4Trailside Academy−7.9Ponderosa−8.2Village East Community−11.3Lake County Intermediate School−11.5Colorado Sports Leadership Acad…−12.2Lumberg−15.9

Middle grades (grades 6–8)

−12.4
scale-score points vs.
expected (Eng + math avg.)

Compared with Colorado schools serving similar students, Lumberg Elementary School scored 11.2 points below expected in English and 13.5 points below expected in math (CMAS scale-score points, 2024–2026). In English that puts it in the 6th percentile statewide after adjusting for demographics (raw: 3rd), and #30 of 35 neighborhood middle schools in Jefferson County R-1.

English vs. expected
−11.2
±6.0 pts · 6th pct. adjusted
English growth
—
median growth percentile
Math vs. expected
−13.5
±5.7 pts · 4th pct. adjusted
Math growth
—
median growth percentile
Met or exceeded expectations, by year
0%10%20%202420252026English 6%Math 6%
By year
202420252026
English vs. expected (pts)−7.5−7.9−18.5
English growth (MGP)———
Math vs. expected (pts)−16.7−7.6−18.1
Math growth (MGP)———
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.
Westminster Academy for Interna…+21.0Harmony Ridge P-8+11.6Orchard Park Academy+6.7Colorado Sports Leadership Acad…+4.5Tennyson Knolls Preparatory Sch…+4.1Sunset+3.2Silver Hills+1.9Edgewater+0.2Timberline PK-8−0.3Longs Peak−1.1Lake County Intermediate School−3.4Kunsmiller Creative Arts Academy−3.5Josephine Hodgkins Leadership A…−4.0Foster Dual Language PK-8−4.3Bruce Randolph School−5.2Place Bridge Academy−6.6Fort Logan Northgate−6.7Rose Hill−6.7Prairie−6.8Trailside Academy−8.1Hamilton−10.2Lumberg−11.2Arvada K-8−12.9Alameda International Junior/Se…−14.2Jefferson Junior/Senior High Sc…−14.9Lake County High School−15.1

Who it serves

The measures behind the comparison
Bars: this school (the area around it for education). Black tick: average of Colorado elementary schools.
Adults 25–44 with a bachelor’s+51%Free/reduced-price lunch81%English learners50%Students with IEPs18%

Neighborhood family income (families with children near the school, NCES): 2.8× the poverty line. Enrollment (K–12): 463. 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.