Griffin El vs Harmony Science Academy-Katy
A head-to-head comparison of two elementary schools in Texas, United States, 2.3 km apart, using official American 2025 data. The better value in each row is highlighted.
Griffin El
Katy · Public elementary · Grades PK–5
782 students
Harmony Science Academy-Katy
Katy · Charter elementary · Grades PK–7
1,347 students
| Measure | Griffin El Katy, Texas | Harmony Science Academy-Katy Katy, Texas |
|---|---|---|
| Success Index (US) | 89 Top 5% | 69 Top 25% |
| State rank | #40 of 4,686 | #684 of 4,686 |
| National rank | #935 of 50,301 | #11869 of 50,301 |
| Sector | Public | Charter |
| Type | Elementary | Elementary |
| Year range | Grades PK–5 | Grades PK–7 |
| Students | 782 | 1,347 |
| Enrollment | 782 | 1,347 |
| Free/reduced-price lunch | 17.1% | 47.2% |
| Students per teacher | 14.0 | 17.1 |
| Reading proficiency | 84% | 70% |
| Math proficiency | 82% | 67% |
| city | Katy | Katy |
| state | Texas | Texas |
| Website | – | – |
The verdict
- •Griffin El scores higher on the Success Index (US) (89.3 vs 69.2).
- •Griffin El does better on math proficiency (82% vs 67%).
- •Griffin El does better on reading proficiency (84% vs 70%).
- •Griffin El does better on community advantage (fewer free/reduced-price lunch) (17.1% vs 47.2%).
- •Griffin El does better on students per teacher (14.0 vs 17.1).
- •Harmony Science Academy-Katy is the larger school with 1,347 students compared with 782.
- •Griffin El is a public school while Harmony Science Academy-Katy is a charter school, so fees and admission rules differ.
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 Griffin El better than Harmony Science Academy-Katy?
On the Success Index (US), Griffin El ranks higher (89.3 vs 69.2 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 Griffin El and Harmony Science Academy-Katy?
About 2.3 km in a straight line, between Katy and Katy in Texas.
Which has the better Enrollment?
Griffin El: 782. Harmony Science Academy-Katy: 1,347. Students enrolled in the latest NCES directory year.
How do Griffin El and Harmony Science Academy-Katy rank in Texas?
Griffin El is 40th of 4,686 and Harmony Science Academy-Katy is 684th of 4,686 among elementary schools in Texas on the 2025 Success Index (US).