Flagstone Elementary School vs South Ridge Elementary An IB World School
A head-to-head comparison of two elementary schools in Colorado, United States, 4.7 km apart, using official American 2025 data. The better value in each row is highlighted.
Flagstone Elementary School
Castle Rock · Public elementary · Grades PK–6
496 students
South Ridge Elementary An IB World School
Castle Rock · Public elementary · Grades K–5
371 students
| Measure | Flagstone Elementary School Castle Rock, Colorado | South Ridge Elementary An IB World School Castle Rock, Colorado |
|---|---|---|
| Success Index (US) | 52 Top 50% | 32 Lower 50% |
| State rank | #383 of 993 | #686 of 993 |
| National rank | #24043 of 50,301 | #37308 of 50,301 |
| Sector | Public | Public |
| Type | Elementary | Elementary |
| Year range | Grades PK–6 | Grades K–5 |
| Students | 496 | 371 |
| Enrollment | 496 | 371 |
| Free/reduced-price lunch | 21.2% | 53.1% |
| Students per teacher | 17.1 | 13.3 |
| Reading proficiency | 47% | 28% |
| Math proficiency | 41% | 21% |
| city | Castle Rock | Castle Rock |
| state | Colorado | Colorado |
| Website | – | – |
The verdict
- •Flagstone Elementary School scores higher on the Success Index (US) (51.6 vs 31.9).
- •Flagstone Elementary School does better on math proficiency (41% vs 21%).
- •Flagstone Elementary School does better on reading proficiency (47% vs 28%).
- •Flagstone Elementary School does better on community advantage (fewer free/reduced-price lunch) (21.2% vs 53.1%).
- •South Ridge Elementary An IB World School does better on students per teacher (13.3 vs 17.1).
- •Flagstone Elementary School is the larger school with 496 students compared with 371.
The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Flagstone Elementary School better than South Ridge Elementary An IB World School?
On the Success Index (US), Flagstone Elementary School ranks higher (51.6 vs 31.9 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 Flagstone Elementary School and South Ridge Elementary An IB World School?
About 4.7 km in a straight line, between Castle Rock and Castle Rock in Colorado.
Which has the better Enrollment?
Flagstone Elementary School: 496. South Ridge Elementary An IB World School: 371. Students enrolled in the latest NCES directory year.
How do Flagstone Elementary School and South Ridge Elementary An IB World School rank in Colorado?
Flagstone Elementary School is 383rd of 993 and South Ridge Elementary An IB World School is 686th of 993 among elementary schools in Colorado on the 2025 Success Index (US).