| St Anthony School | 0.6 |
Regular elementary or secondary | Pre-KG-8 | 259 | 18.1 | Roman Catholic |
| Northwest Child Development Center | 2.7 |
Early childhood program/child care center | Pre-KG-KG | 6 | 0.7 | Nonsectarian |
| St Leo School | 3.3 |
Regular elementary or secondary | Pre-KG-8 | 296 | 11.8 | Roman Catholic |
| St Anna School | 4.1 |
Regular elementary or secondary | Pre-KG-8 | 172 | 12.2 | Roman Catholic |
| Kings Corner Day Nursery & Kindergarten | 4.4 |
Early childhood program/child care center | Pre-KG-KG | 5 | 2.5 | Nonsectarian |
| Rainbow Preschool - Child Care | 8.0 |
Early childhood program/child care center | Pre-KG-KG | 5 | 8.3 | Nonsectarian |
| Wachusett Hills Christian School | 8.3 |
Regular elementary or secondary | Pre-KG-8 | 29 | 9.7 | Seventh-Day Adventist |
| The Master's Christian Academy | 10.4 |
Regular elementary or secondary | Pre-KG-8 | 50 | 8.2 | Christian (no specific denomination) |
| Sacred Heart-jesus Elem School | 10.6 |
Regular elementary or secondary | KG-8 | 174 | 16.9 | Roman Catholic |
| Our Lady Of The Holy Rosary Elementary School | 11.0 |
Regular elementary or secondary | KG-8 | 305 | 16.4 | Roman Catholic |
| Country Day School Of The Holy Union | 11.1 |
Regular elementary or secondary | Pre-KG-8 | 207 | 16.6 | Roman Catholic |
| Village Nursery School | 11.6 |
Early childhood program/child care center | Pre-KG-KG | 6 | 2.9 | Nonsectarian |
| St Mary Elementary School | 12.1 |
Regular elementary or secondary | Pre-KG-6 | 41 | 7.5 | Roman Catholic |
| Mapledene Elem | 12.6 |
Regular elementary or secondary | KG-6 | 26 | 6.7 | Nonsectarian |
| Westford Preschool | 16.7 |
Early childhood program/child care center | Pre-KG-KG | 7 | 4.4 | Nonsectarian |
| Holden Christian Academy | 16.7 |
Regular elementary or secondary | Pre-KG-8 | 107 | 9.5 | Christian (no specific denomination) |
| St Michael Elementary | 16.7 |
Regular elementary or secondary | Pre-KG-8 | 148 | 12.8 | Roman Catholic |
| First Steps Childrens Center | 17.1 |
Early childhood program/child care center | Pre-KG-KG | 15 | 15.0 | Nonsectarian |
| Oak Meadow Montessori School | 17.4 |
Montessori | Pre-KG-8 | 165 | 8.4 | Nonsectarian |
| Next Generation Childrens Center | 17.5 |
Early childhood program/child care center | Pre-KG-KG | 18 | 9.0 | Nonsectarian |
| Chaps Early Childhood Center | 17.6 |
Early childhood program/child care center | Pre-KG-KG | 20 | 6.1 | Nonsectarian |
| Alhuda Academy | 17.8 |
Regular elementary or secondary | Pre-KG-7 | 45 | 5.0 | Islamic |
| Steppingstones School | 18.0 |
Early childhood program/child care center | Pre-KG-KG | 16 | 6.2 | Nonsectarian |
| Kindercare Learning Center - Westford | 18.4 |
Early childhood program/child care center | Pre-KG-KG | 4 | 3.1 | Nonsectarian |
| Ymca Center For Child Development Preschool / Kdgn | 18.7 |
Early childhood program/child care center | Pre-KG-KG | 3 | 3.0 | Nonsectarian |
| St Bernadette Elementary School | 18.9 |
Regular elementary or secondary | Pre-KG-8 | 464 | 13.7 | Roman Catholic |
| Bright Horizons Childrens Center | 19.0 |
Early childhood program/child care center | Pre-KG-Trans. KG | 12 | 12.0 | Nonsectarian |
| Ymca Center For Child Development Northboro | 19.0 |
Early childhood program/child care center | Pre-KG-KG | 5 | 5.0 | Nonsectarian |
| The Cottage Childrens Center | 19.1 |
Early childhood program/child care center | Pre-KG-KG | 10 | 7.1 | Nonsectarian |
| Knowledge Beginnings | 19.2 |
Early childhood program/child care center | Pre-KG-KG | 9 | 9.0 | Nonsectarian |
| The Imago School Association I | 19.3 |
Regular elementary or secondary | KG-8 | 87 | 7.9 | Christian (no specific denomination) |
| Kinder Care Learning Center | 19.5 |
Early childhood program/child care center | Pre-KG-KG | 70 | 70.0 | Nonsectarian |
| Lilliput Early Childhood Center | 19.5 |
Regular elementary or secondary | Pre-KG-1 | 134 | 13.7 | Nonsectarian |
| Lilliput Early Childhood Center Inc Two | 19.5 |
Regular elementary or secondary | Pre-KG-2 | 57 | 7.1 | Nonsectarian |
| Academy Of Notre Dame Elem School | 19.5 |
Regular elementary or secondary | Pre-KG-8 | 479 | 15.2 | Roman Catholic |
| St Mary Elementary School | 19.6 |
Regular elementary or secondary | Pre-KG-8 | 249 | 12.0 | Roman Catholic |
| Immaculate Conception School | 19.6 |
Regular elementary or secondary | Pre-KG-8 | 174 | 9.8 | Roman Catholic |
| New Covenant Christian School | 19.7 |
Regular elementary or secondary | KG-8 | 72 | 8.7 | Christian (no specific denomination) |
| Kindercare | 19.9 |
Early childhood program/child care center | Pre-KG-KG | 12 | 12.0 | Nonsectarian |
| Meadowbrook Child Garden | 20.1 |
Early childhood program/child care center | Pre-KG-KG | 13 | 5.7 | Nonsectarian |
| New Jewish Academy | 20.1 |
Special program emphasis | KG-8 | 71 | 6.0 | Jewish |
| Shrewsbury Childrens Center | 20.1 |
Early childhood program/child care center | Pre-KG-KG | 17 | 8.5 | Nonsectarian |
| Shrewsbury Montessori School | 20.3 |
Montessori | Pre-KG-6 | 103 | 9.8 | Nonsectarian |
| Next Generation Childrens Centers | 20.4 |
Early childhood program/child care center | Pre-KG-KG | 19 | 9.5 | Nonsectarian |
| Greater Visions Childrens Center | 20.6 |
Early childhood program/child care center | Pre-KG-KG | 3 | 1.5 | Nonsectarian |
| Kinder Care Learning Ct | 20.9 |
Early childhood program/child care center | Pre-KG-Trans. KG | 14 | 7.0 | Nonsectarian |
| Keystone Montessori School | 20.9 |
Montessori | Pre-KG-3 | 51 | 5.1 | Nonsectarian |
| St Anne Montessori School | 21.0 |
Montessori | Pre-KG-KG | 14 | 4.2 | Roman Catholic |
| Venerini Academy | 21.0 |
Regular elementary or secondary | Pre-KG-8 | 332 | 14.6 | Roman Catholic |
| Worcester Seventh-day Adventist School | 21.1 |
Regular elementary or secondary | 1-8 | 20 | 10.0 | Seventh-Day Adventist |
| Al-hamra Academy | 21.5 |
Special program emphasis | Pre-KG-8 | 125 | 8.6 | Islamic |
| Knowledge Beginnings - Research Park | 21.5 |
Early childhood program/child care center | Pre-KG-KG | 20 | 10.0 | Nonsectarian |
| The Nativity School Of Worcester | 21.5 |
Special program emphasis | 1-4 | 53 | 4.0 | Roman Catholic |
| Leap School At Dakin Farm | 21.7 |
Early childhood program/child care center | Pre-KG-KG | 12 | 0.7 | Nonsectarian |
| Petersham Montessori Schools | 21.7 |
Montessori | Pre-KG-KG | 12 | 4.0 | Christian (no specific denomination) |
| Kindercare | 22.0 |
Early childhood program/child care center | Pre-KG-KG | 8 | 7.3 | Nonsectarian |
| St Stephen Elementary School | 22.0 |
Regular elementary or secondary | Pre-KG-8 | 187 | 15.7 | Roman Catholic |
| St Peter Central Catholic Elem School | 22.2 |
Regular elementary or secondary | Pre-KG-8 | 323 | 13.6 | Roman Catholic |
| St Mary Elementary School | 22.3 |
Regular elementary or secondary | KG-6 | 129 | 18.4 | Roman Catholic |
| Next Generation Children's Center | 22.4 |
Early childhood program/child care center | Pre-KG-KG | 29 | 0.6 | Nonsectarian |
| Mccauley Nazareth Home | 22.4 |
Special education | 1-8 | 15 | 4.0 | Roman Catholic |
| Ebridge Montessori School | 22.5 |
Montessori | Pre-KG-KG | 8 | 0.5 | Nonsectarian |
| Apple Valley Montessori School | 22.5 |
Montessori | Pre-KG-3 | 55 | 8.3 | Nonsectarian |
| Our Lady Of The Angels Memorial Elem School | 23.1 |
Regular elementary or secondary | Pre-KG-8 | 229 | 15.4 | Roman Catholic |
| St Margaret Elementary School | 23.2 |
Regular elementary or secondary | Pre-KG-8 | 265 | 19.2 | Roman Catholic |
| Klub Kid Too | 23.3 |
Early childhood program/child care center | KG-KG | 3 | 3.0 | Nonsectarian |
| Sunny Sky And Rainbows | 23.3 |
Early childhood program/child care center | Pre-KG-KG | 12 | 2.8 | Nonsectarian |
| Knowledge Beginnings | 23.4 |
Early childhood program/child care center | Pre-KG-KG | 10 | 10.0 | Nonsectarian |
| Little Sprouts Lowell At Cross Point Towers | 23.4 |
Early childhood program/child care center | Pre-KG-KG | 10 | 10.0 | Nonsectarian |
| Franco American School | 23.6 |
Regular elementary or secondary | Pre-KG-8 | 254 | 12.3 | Roman Catholic |
| St Jeanne D'arc Elem School | 23.7 |
Regular elementary or secondary | Pre-KG-8 | 420 | 16.2 | Roman Catholic |
| Next Generation Childrens Centers | 23.9 |
Early childhood program/child care center | Pre-KG-KG | 42 | 10.5 | Nonsectarian |
| St Patrick School And Education Center | 24.1 |
Regular elementary or secondary | Pre-KG-8 | 154 | 13.9 | Roman Catholic |
| Hellenic American Academy | 24.2 |
Regular elementary or secondary | Pre-KG-6 | 109 | 11.6 | Greek Orthodox |
| Lowell Day Nursery | 24.2 |
Early childhood program/child care center | Pre-KG-KG | 202 | 202.0 | Nonsectarian |
| St Louis | 24.7 |
Regular elementary or secondary | Pre-KG-8 | 401 | 23.7 | Roman Catholic |
| Immaculate Conception School | 24.9 |
Regular elementary or secondary | Pre-KG-8 | 166 | 15.2 | Roman Catholic |
| St Michael School | 25.0 |
Regular elementary or secondary | Pre-KG-8 | 370 | 14.9 | Roman Catholic |
