Largest Schools in St. Mary's County Public Schools (2025)
Schools with the highest enrollment. Ranked by the Success Index (US) from official American data; 26 schools in St. Mary's County Public Schools, Maryland. Rank positions shown on each profile are within United States and Maryland.
- Elementary Schools in St. Mary's County Public Schools
- Traditional Public Schools in St. Mary's County Public Schools
- Schools by Math Proficiency in St. Mary's County Public Schools
- Schools by Reading Proficiency in St. Mary's County Public Schools
- Lowest Student–Teacher Ratio in St. Mary's County Public Schools
- 172Leonardtown HighLeonardtown · Public HighEnrollment: 2,118
- 245Great Mills HighGreat Mills · Public HighEnrollment: 1,697
- 365Chopticon HighMorganza · Public HighEnrollment: 1,526
- 464Leonardtown MiddleLeonardtown · Public MiddleEnrollment: 969
- 538Spring Ridge MiddleLexington Park · Public MiddleEnrollment: 913
- 649Margaret Brent MiddleMechanicsville · Public MiddleEnrollment: 878
- 749Esperanza MiddleLexington Park · Public MiddleEnrollment: 835
- 867Evergreen Elementary SchoolCalifornia · Public ElementaryEnrollment: 715
- 930Park Hall ElementaryPark Hall · Public ElementaryEnrollment: 569
- 1054Benjamin Banneker ElementaryLoveville · Public ElementaryEnrollment: 543
- 1175Chesapeake Charter SchoolLexington Park · Charter ElementaryEnrollment: 539
- 1263Captain Walter Francis Duke ElementaryLeonardtown · Public ElementaryEnrollment: 516
- 1369Leonardtown ElementaryLeonardtown · Public ElementaryEnrollment: 509
- 1458Lettie Marshall Dent ElemMechanicsville · Public ElementaryEnrollment: 479
- 1544Green Holly Elementary SchoolLexington Park · Public ElementaryEnrollment: 478
- 1623George Washington Carver ElementaryGreat Mills · Public ElementaryEnrollment: 460
- 1755Piney Point ElementaryTall Timbers · Public ElementaryEnrollment: 435
- 1852Dynard ElementaryChaptico · Public ElementaryEnrollment: 422
- 1963Hollywood ElementaryHollywood · Public ElementaryEnrollment: 414
- 2046Lexington Park ElementaryLexington Park · Public ElementaryEnrollment: 383
- 2145Greenview Knolls ElementaryGreat Mills · Public ElementaryEnrollment: 294
- 2272Oakville ElementaryMechanicsville · Public ElementaryEnrollment: 291
- 2346Mechanicsville ElementaryMechanicsville · Public ElementaryEnrollment: 273
- 2480White Marsh ElementaryMechanicsville · Public ElementaryEnrollment: 220
- 2554Town Creek ElementaryLexington Park · Public ElementaryEnrollment: 220
- 2651Ridge ElementaryRidge · Public ElementaryEnrollment: 209
| # | School | Sector | Enrollment | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|---|
| 1 | Leonardtown High Leonardtown · High · Grades 9–12 | Public | 2,118 | 71.9 Top 25% | 64% Math proficiency | 2,118 |
| 2 | Great Mills High Great Mills · High · Grades 9–12 | Public | 1,697 | 45.0 Lower 50% | 47% Math proficiency | 1,697 |
| 3 | Chopticon High Morganza · High · Grades 9–12 | Public | 1,526 | 65.1 Top 50% | 60% Math proficiency | 1,526 |
| 4 | Leonardtown Middle Leonardtown · Middle · Grades 6–8 | Public | 969 | 63.7 Top 50% | 50% Math proficiency | 969 |
| 5 | Spring Ridge Middle Lexington Park · Middle · Grades 6–8 | Public | 913 | 38.1 Lower 50% | 33% Math proficiency | 913 |
| 6 | Margaret Brent Middle Mechanicsville · Middle · Grades 6–8 | Public | 878 | 48.6 Lower 50% | 40% Math proficiency | 878 |
| 7 | Esperanza Middle Lexington Park · Middle · Grades 6–8 | Public | 835 | 48.9 Lower 50% | 39% Math proficiency | 835 |
| 8 | Evergreen Elementary School California · Elementary · Grades PK–5 | Public | 715 | 67.0 Top 50% | 58% Math proficiency | 715 |
| 9 | Park Hall Elementary Park Hall · Elementary · Grades PK–5 | Public | 569 | 29.8 Lower 50% | 23% Math proficiency | 569 |
| 10 | Benjamin Banneker Elementary Loveville · Elementary · Grades PK–5 | Public | 543 | 53.9 Top 50% | 46% Math proficiency | 543 |
| 11 | Chesapeake Charter School Lexington Park · Elementary · Grades K–8 | Charter | 539 | 75.2 Top 25% | 59% Math proficiency | 539 |
| 12 | Captain Walter Francis Duke Elementary Leonardtown · Elementary · Grades PK–5 | Public | 516 | 63.3 Top 50% | 55% Math proficiency | 516 |
| 13 | Leonardtown Elementary Leonardtown · Elementary · Grades PK–5 | Public | 509 | 69.1 Top 25% | 63% Math proficiency | 509 |
| 14 | Lettie Marshall Dent Elem Mechanicsville · Elementary · Grades PK–5 | Public | 479 | 57.8 Top 50% | 53% Math proficiency | 479 |
| 15 | Green Holly Elementary School Lexington Park · Elementary · Grades PK–5 | Public | 478 | 43.7 Lower 50% | 37% Math proficiency | 478 |
| 16 | George Washington Carver Elementary Great Mills · Elementary · Grades PK–5 | Public | 460 | 23.3 Lower 50% | 16% Math proficiency | 460 |
| 17 | Piney Point Elementary Tall Timbers · Elementary · Grades PK–5 | Public | 435 | 55.4 Top 50% | 50% Math proficiency | 435 |
| 18 | Dynard Elementary Chaptico · Elementary · Grades PK–5 | Public | 422 | 52.3 Top 50% | 46% Math proficiency | 422 |
| 19 | Hollywood Elementary Hollywood · Elementary · Grades PK–5 | Public | 414 | 63.1 Top 50% | 52% Math proficiency | 414 |
| 20 | Lexington Park Elementary Lexington Park · Elementary · Grades PK–5 | Public | 383 | 46.2 Lower 50% | 44% Math proficiency | 383 |
| 21 | Greenview Knolls Elementary Great Mills · Elementary · Grades PK–5 | Public | 294 | 45.0 Lower 50% | 37% Math proficiency | 294 |
| 22 | Oakville Elementary Mechanicsville · Elementary · Grades PK–5 | Public | 291 | 71.8 Top 25% | 67% Math proficiency | 291 |
| 23 | Mechanicsville Elementary Mechanicsville · Elementary · Grades PK–5 | Public | 273 | 45.7 Lower 50% | 32% Math proficiency | 273 |
| 24 | White Marsh Elementary Mechanicsville · Elementary · Grades PK–5 | Public | 220 | 79.7 Top 25% | 77% Math proficiency | 220 |
| 25 | Town Creek Elementary Lexington Park · Elementary · Grades PK–5 | Public | 220 | 53.7 Top 50% | 47% Math proficiency | 220 |
| 26 | Ridge Elementary Ridge · Elementary · Grades PK–5 | Public | 209 | 51.4 Top 50% | 47% Math proficiency | 209 |
Leonardtown High in Leonardtown leads the 2025 list of largest schools in St. Mary's County Public Schools with Enrollment 2,118. Of the 26 schools shown, 25 are public, 1 are charter.
For the full picture see the wider Maryland largest schools rankings, every school on the St. Mary's County Public Schools page, or the comparison tool to put a shortlist side by side.
Free academic assessment
Is your child on grade level in reading and math?
Success Tutoring offers personalised English and math tutoring from Kindergarten to Grade 12. Start with a free online assessment and a clear plan for the year ahead.
- 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
What is the best largest school in St. Mary's County Public Schools?
Leonardtown High in Leonardtown, Maryland ranks first among largest schools in St. Mary's County Public Schools with Enrollment 2,118 (Enrollment: 2,118).
How are largest schools in St. Mary's County Public Schools ranked?
Schools with the highest enrollment. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.
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.