| Long Reach High School | |
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| Address | |
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6101 Old Dobbin Lane , 21045 United States | |
| Coordinates | 39°12′22″N 76°48′40″W / 39.206073°N 76.811237°W |
| Information | |
| Type | Public high school |
| Established | 1996 |
| Principal | Adam Eldridge |
| Enrollment | 1,600 (2017) |
| Color(s) | Purple, Silver, White, Black |
| Mascot | The Lightning |
| Rival | Howard High School |
| Website | lrhs |
Long Reach High School is a public high school located in Columbia, Maryland, United States. It is part of the Howard County Public School System.