Centennial High vs River Hill High
A head-to-head comparison of two high schools in Maryland, United States, 6.7 km apart, using official American 2025 data. The better value in each row is highlighted.
Centennial High
Ellicott City · Public high · Grades 9–12
1,377 students
River Hill High
Clarksville · Public high · Grades 9–12
1,383 students
| Measure | Centennial High Ellicott City, Maryland | River Hill High Clarksville, Maryland |
|---|---|---|
| Success Index (US) | 82 Top 10% | 85 Top 5% |
| State rank | #8 of 197 | #3 of 197 |
| National rank | #1001 of 16,910 | #658 of 16,910 |
| Sector | Public | Public |
| Type | High | High |
| Year range | Grades 9–12 | Grades 9–12 |
| Students | 1,377 | 1,383 |
| Enrollment | 1,377 | 1,383 |
| Free/reduced-price lunch | 18.5% | 7.7% |
| Students per teacher | 17.0 | 18.0 |
| Reading proficiency | 80% | 86% |
| Math proficiency | 84% | 91% |
| city | Ellicott City | Clarksville |
| state | Maryland | Maryland |
| Website | – | – |
The verdict
- •River Hill High scores higher on the Success Index (US) (84.8 vs 81.9).
- •River Hill High does better on math proficiency (91% vs 84%).
- •River Hill High does better on reading proficiency (86% vs 80%).
- •River Hill High does better on community advantage (fewer free/reduced-price lunch) (7.7% vs 18.5%).
- •Centennial High does better on students per teacher (17.0 vs 18.0).
- •River Hill High is the larger school with 1,383 students compared with 1,377.
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 Centennial High better than River Hill High?
On the Success Index (US), River Hill High ranks higher (84.8 vs 81.9 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 Centennial High and River Hill High?
About 6.7 km in a straight line, between Ellicott City and Clarksville in Maryland.
Which has the better Enrollment?
Centennial High: 1,377. River Hill High: 1,383. Students enrolled in the latest NCES directory year.
How do Centennial High and River Hill High rank in Maryland?
Centennial High is 8th of 197 and River Hill High is 3rd of 197 among high schools in Maryland on the 2025 Success Index (US).