Boulder High School vs Flatirons Elementary School
A head-to-head comparison of two schools in Colorado, United States, 1.1 km apart, using official American 2025 data. The better value in each row is highlighted.
Boulder High School
Boulder · Public high · Grades 9–12
1,939 students
Flatirons Elementary School
Boulder · Public elementary · Grades K–5
163 students
| Measure | Boulder High School Boulder, Colorado | Flatirons Elementary School Boulder, Colorado |
|---|---|---|
| Success Index (US) | 71 Top 25% | 72 Top 25% |
| State rank | #39 of 307 | #115 of 993 |
| National rank | #3120 of 16,910 | #10053 of 50,301 |
| Sector | Public | Public |
| Type | High | Elementary |
| Year range | Grades 9–12 | Grades K–5 |
| Students | 1,939 | 163 |
| Enrollment | 1,939 | 163 |
| Free/reduced-price lunch | 34.5% | 18.4% |
| Students per teacher | 21.3 | 14.8 |
| Reading proficiency | 81% | 62% |
| Math proficiency | 66% | 57% |
| city | Boulder | Boulder |
| state | Colorado | Colorado |
| Website | – | – |
The verdict
- •Flatirons Elementary School scores higher on the Success Index (US) (71.8 vs 70.7).
- •Boulder High School does better on math proficiency (66% vs 57%).
- •Boulder High School does better on reading proficiency (81% vs 62%).
- •Flatirons Elementary School does better on community advantage (fewer free/reduced-price lunch) (18.4% vs 34.5%).
- •Flatirons Elementary School does better on students per teacher (14.8 vs 21.3).
- •Boulder High School is the larger school with 1,939 students compared with 163.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
Free academic assessment
Torn between two schools? Start with your child.
Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.
- Personalised learning plan mapped to the Australian Curriculum
- English & Maths from Kindergarten to Year 12
- Flexible memberships, no lock-in contracts
- Centres across NSW, VIC, QLD, WA, SA and ACT
Frequently asked questions
Is Boulder High School better than Flatirons Elementary School?
On the Success Index (US), Flatirons Elementary School ranks higher (71.8 vs 70.7 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Boulder High School and Flatirons Elementary School?
About 1.1 km in a straight line, between Boulder and Boulder in Colorado.
Which has the better Enrollment?
Boulder High School: 1,939. Flatirons Elementary School: 163. Students enrolled in the latest NCES directory year.
How do Boulder High School and Flatirons Elementary School rank in Colorado?
Boulder High School is 39th of 307 and Flatirons Elementary School is 115th of 993 among high schools in Colorado on the 2025 Success Index (US).