Best schools in Colorado (2025)
The top five of 1,741 schools in each category, with links to the full top 100. Rankings use the Success Index (US), built only from official American data.
Colorado has 1,741 schools educating 823,510 students in 2025: 1,503 public, 238 charter.
The median Enrollment across Colorado is 380. Students enrolled in the latest NCES directory year.
Browse every school in Colorado →
Best elementary schools in Colorado
Schools classified as elementary by NCES.
Sleeping Giant School
Steamboat Springs · Public elementary · Grades PK–8
337 students
Parker Core Knowledge
Parker · Charter elementary · Grades K–8
705 students
High Peaks Elementary School
Boulder · Public elementary · Grades K–5
257 students
Cheyenne Mountain Elementary School
Colorado Springs · Public elementary · Grades K–6
324 students
Challenge School
Denver · Public elementary · Grades PK–8
560 students
Best middle schools in Colorado
Schools classified as middle schools by NCES.
Summit Middle Charter School
Boulder · Charter middle · Grades 6–8
366 students
Steamboat Springs Middle School
Steamboat Springs · Public middle · Grades 6–8
440 students
The Connect Charter School
Pueblo · Charter middle · Grades 6–8
252 students
Kinard Core Knowledge Middle School
Fort Collins · Public middle · Grades 6–8
762 students
Southern Hills Middle School
Boulder · Public middle · Grades 6–8
502 students
Best high schools in Colorado
Schools classified as high schools by NCES.
The Classical Academy High School
Colorado Springs · Charter high · Grades 9–12
616 students
Cherry Creek Elevation
Centennial · Public high · Grades 6–12
248 students
The Vanguard School (High)
Colorado Springs · Charter high · Grades 9–12
303 students
eDCSD
Englewood · Public high · Grades 9–12
61 students
Venture Academy of Leadership and Entrepreneurship
Parker · Public high · Grades 9–12
88 students
Best traditional public schools in Colorado
District-run public schools.
Sleeping Giant School
Steamboat Springs · Public elementary · Grades PK–8
337 students
Cherry Creek Elevation
Centennial · Public high · Grades 6–12
248 students
High Peaks Elementary School
Boulder · Public elementary · Grades K–5
257 students
Cheyenne Mountain Elementary School
Colorado Springs · Public elementary · Grades K–6
324 students
Challenge School
Denver · Public elementary · Grades PK–8
560 students
Best charter schools in Colorado
Publicly funded charter schools.
The Classical Academy High School
Colorado Springs · Charter high · Grades 9–12
616 students
Parker Core Knowledge
Parker · Charter elementary · Grades K–8
705 students
Summit Middle Charter School
Boulder · Charter middle · Grades 6–8
366 students
The Vanguard School (High)
Colorado Springs · Charter high · Grades 9–12
303 students
Littleton Academy
Littleton · Charter elementary · Grades K–8
455 students
Best schools by math proficiency in Colorado
Schools ranked by the share of tested students proficient or above in math on the state assessment (EDFacts, all students), for schools with 30 or more tested students.
Polaris Elementary School
Denver · Public elementary · Grades 1–5
350 students
Aurora Quest K-8
Aurora · Public elementary · Grades K–8
575 students
Dennison Elementary School
Lakewood · Public elementary · Grades K–6
575 students
Challenge School
Denver · Public elementary · Grades PK–8
560 students
Parker Core Knowledge
Parker · Charter elementary · Grades K–8
705 students
Best schools by reading proficiency in Colorado
Schools ranked by the share of tested students proficient or above in reading/language arts (EDFacts, all students).
Polaris Elementary School
Denver · Public elementary · Grades 1–5
350 students
Aurora Quest K-8
Aurora · Public elementary · Grades K–8
575 students
Parker Core Knowledge
Parker · Charter elementary · Grades K–8
705 students
Evergreen High School
Evergreen · Public high · Grades 9–12
909 students
Zach Elementary School
Fort Collins · Public elementary · Grades K–5
492 students
Best lowest student–teacher ratio in Colorado
Schools with the fewest students per FTE teacher, among schools with at least 100 students.
Cherry Creek Elevation
Centennial · Public high · Grades 6–12
248 students
Telluride Elementary School
Telluride · Public elementary · Grades PK–2
140 students
Avon Elementary School
Avon · Public elementary · Grades K–5
242 students
Ignacio High School
Ignacio · Public high · Grades 9–12
182 students
Fitzsimmons Middle School
Bailey · Public middle · Grades 6–8
138 students
Best largest schools in Colorado
Schools with the highest enrollment.
Cherry Creek High School
Greenwood Village · Public high · Grades 9–12
3,852 students
Cherokee Trail High School
Aurora · Public high · Grades 9–12
3,089 students
Eaglecrest High School
Centennial · Public high · Grades 9–12
2,851 students
American Academy
Castle Pines · Charter elementary · Grades PK–8
2,803 students
Grandview High School
Aurora · Public high · Grades 9–12
2,684 students
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Frequently asked questions
What is the best elementary school in Colorado?
Sleeping Giant School in Steamboat Springs ranks first among elementary schools in Colorado with a Success Index (US) of 89.1 out of 100 (Enrollment: 337).
How are elementary schools in Colorado ranked?
Each school's Success Index (US) combines 4 factors: math proficiency (30%), reading proficiency (30%), community advantage (fewer free/reduced-price lunch) (25%), students per teacher (15%). Each factor is a percentile against schools of the same type across United States. Schools with fewer than 60 students are excluded from rankings.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.