The largest public high schools in Howard County, Maryland
This ranking covers the largest public high schools in Howard County, Maryland, drawn from 14 qualifying public high schools. Marriotts Ridge High leads the list at 1,741, against a median of 1,380 across the ranked schools.
The table below is sortable and filterable, and the full list downloads as a CSV. Figures come from federal NCES enrollment data and, where applicable, state assessment results for 2024-25.
| # | School | City | Students |
|---|---|---|---|
| 1 | Marriotts Ridge High | Marriottsville, MD | 1,741 |
| 2 | Reservoir High | Fulton, MD | 1,597 |
| 3 | Atholton High | Columbia, MD | 1,540 |
| 4 | Howard High | Ellicott City, MD | 1,493 |
| 5 | Mount Hebron High | Ellicott City, MD | 1,455 |
| 6 | Oakland Mills High | Columbia, MD | 1,413 |
| 7 | River Hill High | Clarksville, MD | 1,383 |
| 8 | Centennial High | Ellicott City, MD | 1,377 |
| 9 | Glenelg High | Glenelg, MD | 1,363 |
| 10 | Long Reach High | Columbia, MD | 1,334 |
| 11 | Guilford Park High | Jessup, MD | 1,218 |
| 12 | Wilde Lake High | Columbia, MD | 1,197 |
| 13 | Hammond High | Columbia, MD | 1,159 |
| 14 | Homewood School | Ellicott City, MD | 109 |
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allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.