| Frederick Adventist School | 0.0 |
Regular elementary or secondary | KG-8 | 78 | 12.4 | Seventh-Day Adventist |
| Trinity School Of Frederick | 1.4 |
Regular elementary or secondary | KG-8 | 93 | 7.7 | Episcopal |
| Church Of The Brethren Learning Center | 1.5 |
Early childhood program/child care center | Pre-KG-KG | 15 | 15.0 | Brethren |
| Calvary Weekday School | 1.8 |
Early childhood program/child care center | Pre-KG-KG | 18 | 4.7 | Methodist |
| Visitation Academy | 2.0 |
Regular elementary or secondary | Pre-KG-8 | 109 | 6.4 | Roman Catholic |
| The Goddard School Of Frederick | 2.7 |
Early childhood program/child care center | Pre-KG-KG | 15 | 15.0 | Nonsectarian |
| The Banner School | 3.2 |
Regular elementary or secondary | KG-8 | 203 | 8.2 | Nonsectarian |
| Middletown United Methodist Church Preschool And | 4.1 |
Early childhood program/child care center | Pre-KG-KG | 28 | 17.5 | Methodist |
| St John Regional Catholic School | 4.4 |
Regular elementary or secondary | Pre-KG-8 | 590 | 16.6 | Roman Catholic |
| St Thomas More Academy | 4.5 |
Regular elementary or secondary | Pre-KG-8 | 132 | 10.3 | Roman Catholic |
| Frederick Country Day Montessori School | 4.7 |
Montessori | Pre-KG-KG | 11 | 0.7 | Nonsectarian |
| Lucy School | 9.6 |
Special program emphasis | Pre-KG-2 | 27 | 10.8 | Nonsectarian |
| Friends Meeting School | 10.2 |
Regular elementary or secondary | Pre-KG-8 | 82 | 6.9 | Friends |
| Little Travelers Daycare & Learning Center | 14.0 |
Early childhood program/child care center | Pre-KG-Trans. KG | 10 | 10.0 | Nonsectarian |
| Mt Aetna Adventist Elementary School | 15.8 |
Regular elementary or secondary | Pre-KG-8 | 75 | 11.9 | Seventh-Day Adventist |
| Shiningtree School | 17.1 |
Regular elementary or secondary | 6-8 | 11 | 5.5 | Nonsectarian |
| Energy Child Development Center | 18.1 |
Early childhood program/child care center | Pre-KG-KG | 4 | 2.0 | Nonsectarian |
| Covenant Christian School | 19.5 |
Regular elementary or secondary | Pre-KG-1 | 11 | 1.6 | Christian (no specific denomination) |
| Disregard, Address Is Correct | 20.0 |
Regular elementary or secondary | KG-8 | 217 | 14.4 | Roman Catholic |
| Village Montessori School Inc | 20.7 |
Montessori | Pre-KG-2 | 33 | 4.7 | Nonsectarian |
| Butler School | 21.2 |
Montessori | Pre-KG-8 | 109 | 10.3 | Nonsectarian |
| Seneca Academy | 21.5 |
Regular elementary or secondary | Pre-KG-8 | 96 | 10.1 | Nonsectarian |
| Nist Child Care Center | 21.6 |
Early childhood program/child care center | Pre-KG-KG | 8 | 8.0 | Nonsectarian |
| Ets Chaiyim School | 21.7 |
Regular elementary or secondary | KG-6 | 45 | 9.4 | Jewish |
| Mother Seton Elementary School | 21.7 |
Regular elementary or secondary | Pre-KG-8 | 379 | 17.1 | Roman Catholic |
| Quality Care Nursery & Day School | 21.8 |
Special program emphasis | Pre-KG-1 | 14 | 3.5 | Nonsectarian |
| Church Of The Redeemer Christian School | 22.1 |
Regular elementary or secondary | Pre-KG-8 | 204 | 16.4 | Christian (no specific denomination) |
| Hagerstown Childrens School | 22.2 |
Montessori | Pre-KG-KG | 12 | 6.0 | Nonsectarian |
| Mary Of Nazareth School | 22.3 |
Regular elementary or secondary | KG-8 | 497 | 11.5 | Roman Catholic |
| The Jefferson School | 22.4 |
Montessori | Pre-KG-KG | 80 | 8.0 | Nonsectarian |
| Georgetown Hill Early School | 22.4 |
Early childhood program/child care center | Trans. KG-Trans. KG | 6 | 6.0 | Nonsectarian |
| St Martin's School | 22.5 |
Regular elementary or secondary | KG-8 | 237 | 11.4 | Roman Catholic |
| St Mary Catholic School | 22.5 |
Regular elementary or secondary | KG-8 | 258 | 16.0 | Roman Catholic |
| Glenwood Country Day School | 22.8 |
Regular elementary or secondary | Pre-KG-4 | 49 | 12.2 | Nonsectarian |
| Glenwood Country Day School | 22.8 |
Regular elementary or secondary | 1-3 | 22 | 11.0 | Nonsectarian |
| Gaithersburg Presbyterian Preschool & Kdgn | 23.2 |
Early childhood program/child care center | Pre-KG-KG | 20 | 20.0 | Presbyterian |
| Epworth Preschool And Kindergarten | 23.5 |
Early childhood program/child care center | Pre-KG-KG | 16 | 16.0 | Methodist |
| The Franklin Schools | 24.1 |
Montessori | Pre-KG-KG | 33 | 3.0 | Nonsectarian |
| Woodmont Academy | 24.1 |
Regular elementary or secondary | Pre-KG-8 | 285 | 12.4 | Roman Catholic |
| Carroll Lutheran School | 24.7 |
Regular elementary or secondary | KG-8 | 109 | 11.7 | Other Lutheran |
| Primary Montessori Day School | 25.0 |
Montessori | Pre-KG-2 | 49 | 5.0 | Nonsectarian |
