| Academy of the Holy Cross
| Kensington | MD | 9th-12th | none | Girls only | 555 | Roman Catholic |
| Archbishop Curley High School
| Baltimore | MD | 9th-12th | none | Boys only | 560 | Roman Catholic |
| Baltimore Lutheran School
| Towson | MD | 6th-12th | none | Coed | 397 | Roman Catholic |
| Barrie School
| Silver Spring | MD | PK-12th | none | Coed | 375 | None |
| Bishop McNamara High School
| Forestville | MD | 9th-12th | none | Coed | 871 | Roman Catholic |
| Bishop Walsh School
| Cumberland | MD | K-12th | none | Coed | 490 | Roman Catholic |
| Boys' Latin School of Maryland
| Baltimore | MD | K-12th | none | Boys only | 600 | None |
| Bryn Mawr School
| Baltimore | MD | PK-12th | none | Girls only | 776 | None |
| Bullis School
| Potomac | MD | K-12th | none | Coed | 828 | None |
| Calverton School
| Huntingtown | MD | PK-12th | none | Coed | 420 | None |
| Catholic High School of Baltimore
| Baltimore | MD | 9th-12th | none | Girls only | 314 | Roman Catholic |
| Chapelgate Christian Academy
| Marriottsville | MD | 6th-12th | none | Coed | 400 | Presbyterian |
| Charles E. Smith Jewish Day School
| Rockville | MD | K-12th | none | Coed | 1514 | Jewish |
| Connelly School of the Holy Child
| Potomac | MD | 6th-12th | none | Girls only | 382 | Roman Catholic |
| DeMatha Catholic High School
| Hyattsville | MD | 9th-12th | none | Boys only | 1012 | Roman Catholic |
| Friends School of Baltimore
| Baltimore | MD | PK-12th | none | Coed | 976 | Quakers/Friends |
| Garrison Forest School
| Owings Mills | MD | PK-12th | 8th-12th | Girls only | 696 | None |
| Georgetown Preparatory School 4.8/5 based on 1 student review(s) | North Bethesda | MD | 9th-12th | 9th-12th | Boys only | 480 | Roman Catholic (Jesuit) |
| Gilman School
| Baltimore | MD | 1st-12th | none | Boys only | 1012 | None |
| Glenelg Country School
| Ellicott City | MD | PK-12th | none | Coed | 806 | None |
| Grace Brethren Christian School
| Clinton | MD | PK-12th | none | Coed | 648 | Non-Denominational Christian |
| Harford Christian School
| Darlington | MD | PK-12th | none | Coed | 415 | Methodist |
| Heights School
| Potomac | MD | 3rd-12th | none | Boys only | 458 | Roman Catholic |
| Highland View Academy
| Hagerstown | MD | 9th-12th | none | Coed | 115 | Adventists |
| Holton-Arms School
| Bethesda | MD | 3rd-12th | none | Girls only | 645 | None |
| Indian Creek School
| Crownsville | MD | PK-12th | none | Coed | 633 | None |
| Institute of Notre Dame
| Baltimore | MD | 9th-12th | none | Girls only | 318 | Roman Catholic |
| John Carroll School
| Bel Air | MD | 9th-12th | none | Coed | 827 | Roman Catholic |
| Key School 4.7/5 based on 3 student review(s) | Annapolis | MD | PK-12th | none | Coed | 716 | None |
| Landon School 4.4/5 based on 3 student review(s) | Bethesda | MD | 3rd-12th | none | Boys only | 679 | None |
| Loyola Blakefield
| Towson | MD | 6th-12th | none | Boys only | 1000 | Roman Catholic (Jesuit) |
| Maryvale Preparatory School
| Brooklandville | MD | 6th-12th | none | Girls only | 376 | Roman Catholic |
| McDonogh School 4/5 based on 1 student review(s) | Owings Mills | MD | K-12th | 9th-12th | Coed | 1292 | None |
| McLean School
| Potomac | MD | K-12th | none | Coed | 472 | None |
| Notre Dame Preparatory School
| Towson | MD | 6th-12th | none | Girls only | 760 | Roman Catholic |
| Oldfields School
| Glencoe | MD | 8th-PG | 8th-PG | Coed | 164 | None |
| Our Lady of Good Counsel High School
| Olney | MD | 9th-12th | none | Coed | 1283 | Roman Catholic |
| Park School
| Baltimore | MD | PK-12th | none | Coed | 865 | None |
| Riverdale Baptist School
| Upper Marlboro | MD | PK-12th | none | Coed | 758 | Baptist |
| Roland Park Country School
| Baltimore | MD | K-12th | none | Girls only | 705 | None |
| Saint John's Catholic Prep
| Frederick | MD | 9th-12th | none | Coed | 276 | Roman Catholic |
| Saints Peter and Paul High School
| Easton | MD | 9th-12th | none | Coed | 189 | Roman Catholic |
| Sandy Spring Friends School
| Sandy Spring | MD | PK-12th | 9th-12th | Coed | 561 | Quakers/Friends |
| Severn School
| Severna Park | MD | 6th-12th | none | Coed | 591 | None |
| Spencerville Adventist Academy
| Silver Spring | MD | PK-12th | none | Coed | 283 | Adventists |
| St. Andrew's Episcopal School
| Potomac | MD | PK-12th | none | Coed | 528 | Episcopal |
| St. Frances Academy
| Baltimore | MD | 9th-12th | none | Coed | 303 | Roman Catholic |
| St. James School
| St. James | MD | 8th-12th | 8th-12th | Coed | 215 | Episcopal |
| St. Maria Goretti High School
| Hagerstown | MD | 9th-12th | none | Coed | 220 | Roman Catholic |
| St. Mary's High School
| Annapolis | MD | 9th-12th | none | Coed | 478 | Roman Catholic |
| St. Mary's Ryken High School
| Leonardtown | MD | 9th-12th | none | Coed | 664 | Roman Catholic |
| St. Paul's School
| Brooklandville | MD | K-12th | none | Boys only | 853 | Episcopal |
| St. Paul's School for Girls
| Brooklandville | MD | 5th-12th | none | Girls only | 463 | Episcopal |
| Takoma Academy
| Takoma Park | MD | 9th-12th | none | Coed | 228 | Adventists |
| Tome School
| North East | MD | K-12th | none | Coed | 470 | None |
| Woodstream Christian Academy
| Mitchellville | MD | K-12th | none | Coed | 400 | Non-Denominational Christian |
| Worcester Preparatory School
| Berlin | MD | PK-12th | none | Coed | 615 | None |