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County-by-county HSA numbers
| LEA | All Students |
| Allegany County | |
| Class of 2009 | 694 |
| Number w/o HSA | 40 |
| Percent w/o HSA | 6% |
| Anne Arundel | |
| Class of 2009 | 4123 |
| Number w/o HSA | 175 |
| Percent w/o HSA | 4% |
| Baltimore City | |
| Class of 2009 | 4061 |
| Number w/o HSA | 1063 |
| Percent w/o HSA | 26% |
| Baltimore County | |
| Class of 2009 | 6152 |
| Number w/o HSA | 455 |
| Percent w/o HSA | 7% |
| Calvert County | |
| Class of 2009 | 1307 |
| Number w/o HSA | 11 |
| Percent w/o HSA | 1% |
| Caroline County | |
| Class of 2009 | 358 |
| Number w/o HSA | 13 |
| Percent w/o HSA | 4% |
| Carroll County | |
| Class of 2009 | 2317 |
| Number w/o HSA | 49 |
| Percent w/o HSA | 2% |
| Cecil County | |
| Class of 2009 | 1028 |
| Number w/o HSA | 24 |
| Percent w/o HSA | 2% |
| Charles County | |
| Class of 2009 | 2017 |
| Number w/o HSA | 51 |
| Percent w/o HSA | 3% |
| Dorchester County | |
| Class of 2009 | 299 |
| Number w/o HSA | 16 |
| Percent w/o HSA | 5% |
| Frederick County | |
| Class of 2009 | 2983 |
| Number w/o HSA | 63 |
| Percent w/o HSA | 2% |
| Garrett County | |
| Class of 2009 | 362 |
| Number w/o HSA | 18 |
| Percent w/o HSA | 5% |
| Harford County | |
| Class of 2009 | 2109 |
| Number w/o HSA | 47 |
| Percent w/o HSA | 2% |
| Howard County | |
| Class of 2009 | 3379 |
| Number w/o HSA | 135 |
| Percent w/o HSA | 4% |
| Kent County | |
| Class of 2009 | 158 |
| Number w/o HSA | 11 |
| Percent w/o HSA | 7% |
| Montgomery County | |
| Class of 2009 | 9076 |
| Number w/o HSA | 571 |
| Percent w/o HSA | 6% |
| Prince George's County | |
| Class of 2009 | 7684 |
| Number w/o HSA | 1655 |
| Percent w/o HSA | 22% |
| Queen Anne's County | |
| Class of 2009 | 588 |
| Number w/o HSA | 5 |
| Percent w/o HSA | 1% |
| St. Mary's County | |
| Class of 2009 | 1092 |
| Number w/o HSA | 24 |
| Percent w/o HSA | 2% |
| Somerset County | |
| Class of 2009 | 159 |
| Number w/o HSA | 13 |
| Percent w/o HSA | 8% |
| Talbot County | |
| Class of 2009 | 342 |
| Number w/o HSA | 27 |
| Percent w/o HSA | 8% |
| Washington County | |
| Class of 2009 | 1474 |
| Number w/o HSA | 58 |
| Percent w/o HSA | 4% |
| Wicomico County | |
| Class of 2009 | 885 |
| Number w/o HSA | 107 |
| Percent w/o HSA | 12% |
| Worcester County | |
| Class of 2009 | 490 |
| Number w/o HSA | 29 |
| Percent w/o HSA | 6% |
| STATE TOTAL | |
| Class of 2009 | 53137 |
| Number w/o HSA | 4660 |
| Percent w/o HSA | 9% |
