Best high schools in Howard County Public Schools (2025)
Schools classified as high schools by NCES. Ranked by the Success Index (US) from official American data; 13 schools in Howard County Public Schools, Maryland. Rank positions shown on each profile are within United States and Maryland.
- Elementary Schools in Howard County Public Schools
- Middle Schools in Howard County Public Schools
- Traditional Public Schools in Howard County Public Schools
- Schools by Math Proficiency in Howard County Public Schools
- Schools by Reading Proficiency in Howard County Public Schools
- Lowest Student–Teacher Ratio in Howard County Public Schools
- Largest Schools in Howard County Public Schools
- 186Glenelg HighGlenelg · Public High86% Math proficiency · 1,363 students
- 285River Hill HighClarksville · Public High91% Math proficiency · 1,383 students
- 385Marriotts Ridge HighMarriottsville · Public High85% Math proficiency · 1,741 students
- 482Centennial HighEllicott City · Public High84% Math proficiency · 1,377 students
- 580Howard HighEllicott City · Public High77% Math proficiency · 1,493 students
- 679Mount Hebron HighEllicott City · Public High78% Math proficiency · 1,455 students
- 778Atholton HighColumbia · Public High73% Math proficiency · 1,540 students
- 874Reservoir HighFulton · Public High64% Math proficiency · 1,597 students
- 966Hammond HighColumbia · Public High55% Math proficiency · 1,159 students
- 1063Long Reach HighColumbia · Public High51% Math proficiency · 1,334 students
- 1160Wilde Lake HighColumbia · Public High48% Math proficiency · 1,197 students
- 1253Guilford Park HighJessup · Public High45.2% Free/reduced-price lunch · 1,218 students
- 1353Oakland Mills HighColumbia · Public High47% Math proficiency · 1,413 students
| # | School | Sector | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|
| 1 | Glenelg High Glenelg · High · Grades 9–12 | Public | 85.6 Top 5% | 86% Math proficiency | 1,363 |
| 2 | River Hill High Clarksville · High · Grades 9–12 | Public | 84.8 Top 5% | 91% Math proficiency | 1,383 |
| 3 | Marriotts Ridge High Marriottsville · High · Grades 9–12 | Public | 84.5 Top 5% | 85% Math proficiency | 1,741 |
| 4 | Centennial High Ellicott City · High · Grades 9–12 | Public | 81.9 Top 10% | 84% Math proficiency | 1,377 |
| 5 | Howard High Ellicott City · High · Grades 9–12 | Public | 79.9 Top 10% | 77% Math proficiency | 1,493 |
| 6 | Mount Hebron High Ellicott City · High · Grades 9–12 | Public | 78.6 Top 10% | 78% Math proficiency | 1,455 |
| 7 | Atholton High Columbia · High · Grades 9–12 | Public | 77.6 Top 10% | 73% Math proficiency | 1,540 |
| 8 | Reservoir High Fulton · High · Grades 9–12 | Public | 73.5 Top 25% | 64% Math proficiency | 1,597 |
| 9 | Hammond High Columbia · High · Grades 9–12 | Public | 65.6 Top 50% | 55% Math proficiency | 1,159 |
| 10 | Long Reach High Columbia · High · Grades 9–12 | Public | 63.4 Top 50% | 51% Math proficiency | 1,334 |
| 11 | Wilde Lake High Columbia · High · Grades 9–12 | Public | 60.2 Top 50% | 48% Math proficiency | 1,197 |
| 12 | Guilford Park High Jessup · High · Grades 9–12 | Public | 53.3 Top 50% | 45.2% Free/reduced-price lunch | 1,218 |
| 13 | Oakland Mills High Columbia · High · Grades 9–12 | Public | 53.3 Top 50% | 47% Math proficiency | 1,413 |
Glenelg High in Glenelg leads the 2025 list of high schools in Howard County Public Schools with a Success Index (US) of 85.6. Of the 13 schools shown, 13 are public.
For the full picture see the wider Maryland high schools rankings, every school on the Howard County Public Schools page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best high school in Howard County Public Schools?
Glenelg High in Glenelg, Maryland ranks first among high schools in Howard County Public Schools with a Success Index (US) of 85.6 out of 100 (Enrollment: 1,363).
How are high schools in Howard County Public Schools 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.