Riverside School

Middle school·Grades 6-8 New Castle, Colorado·81647
Score
54.3/100
Compare Riverside School with another school
#117
Among 255 Colorado middle schools
#1
In Garfield School District No. Re-2
Top 46%
In Colorado

Score 54.3/100: better than 54% of Colorado middle schools on 2025-26 state tests. Schools are only compared with others of the same type in the same state. How we score schools

Performance (state tests, 2025-26)

% met or exceeded expectations on state tests in Colorado, all students. Colored bars are green when the school is at or above the average for similar Colorado schools.

English language arts
43%
Similar Colorado schools ≈ 44%, better than 59% of them
420 students tested
Math
30%
Similar Colorado schools ≈ 35%, better than 53% of them
421 students tested
Science
27%
Similar Colorado schools ≈ 36%, better than 41% of them
147 students tested
All Colorado schools (ELA / math)
45% / 38%
State average across every school type, 2025-26
All 9 published results by grade and test

As published by Colorado Department of Education. "Hidden" means the state didn't publish the result to protect student privacy.

SubjectGradeTestResultStudents tested
English language artsGrade 6CMAS36.9122
English language artsGrade 7CMAS54150
English language artsGrade 8CMAS37.2148
English language artsAll gradesCMAS43.1420
MathGrade 6CMAS29.3123
MathGrade 7CMAS28.7150
MathGrade 8CMAS31.8148
MathAll gradesCMAS29.9421
ScienceGrade 8CMAS27.2147

School profile

Grades
6-8
Students
440
Type
Middle school
Charter school
No
Program
Regular

Students

Enrollment
440
Typical middle school: 467
Free or reduced-price lunch
45%
Typical middle school: 49%

District and location

City
Garfield County

Contact

Address
215 ALDER AVENUE
New Castle, CO 81647

"Typical" is the middle (median) middle school in Colorado. Higher or lower is not in itself better or worse. Address, phone and website are as the state reported them to the U.S. Department of Education for 2024-25, so check with the school before visiting. School details: U.S. Department of Education, Common Core of Data (enrollment 2023-24, lunch eligibility 2024-25).

Nearby middle schools

Straight-line distance. Check the district's attendance zones: living close to a school doesn't guarantee a place.

Location

OpenStreetMap · Google Maps

Riverside School at a glance

Riverside School is a public middle school in New Castle, Colorado, serving grades 6-8. It is part of Garfield School District No. Re-2. It has about 440 students (a typical Colorado middle school has 467). About 45% of students are eligible for free or reduced-price lunch, compared with 49% at a typical Colorado middle school, which is useful context when reading test results.

In 2025-26 state tests, 43% in English language arts (similar schools: 44%) and 30% in math (similar schools: 35%) reached the state standard (% met or exceeded expectations). On our score, which compares it only with other Colorado middle schools, it scores 54.3 out of 100: better than 54% of them, ranking #117 of 255. Its English language arts result was broadly unchanged from the year before. This overview is generated automatically from published state and federal data; figures are rounded, and you can check the originals via the official sources above.

Compare Riverside School with another school

Page updated 2026-10-12.