| Washington Montessori School | 0.0 |
Montessori | Pre-KG-8 | 234 | 8.1 | Nonsectarian |
| Litchfield Montessori School | 10.1 |
Montessori | Pre-KG-6 | 64 | 6.8 | Nonsectarian |
| St Peter/st Francis School | 11.6 |
Regular elementary or secondary | Pre-KG-8 | 192 | 13.7 | Roman Catholic |
| St John The Evangelist | 12.0 |
Regular elementary or secondary | Pre-KG-8 | 181 | 15.1 | Roman Catholic |
| Creative Arts Studio | 13.3 |
Early childhood program/child care center | Pre-KG-KG | 24 | 8.0 | Nonsectarian |
| St Mary Magdalen School | 13.6 |
Regular elementary or secondary | Pre-KG-8 | 246 | 23.2 | Roman Catholic |
| Blessed Sacrament School | 15.8 |
Regular elementary or secondary | Pre-KG-8 | 300 | 28.6 | Roman Catholic |
| Kids Castle Child Care Learning Center | 16.4 |
Early childhood program/child care center | Pre-KG-KG | 8 | 8.0 | Nonsectarian |
| Yeshiva K'tana Of Waterbury | 16.6 |
Regular elementary or secondary | Pre-KG-7 | 117 | 7.3 | Jewish |
| St Joseph Elementary School | 16.9 |
Regular elementary or secondary | Pre-KG-8 | 147 | 11.4 | Roman Catholic |
| St Mary | 17.1 |
Regular elementary or secondary | Pre-KG-8 | 414 | 24.4 | Roman Catholic |
| Our Lady Of Mount Carmel School | 17.3 |
Regular elementary or secondary | Pre-KG-8 | 204 | 15.1 | Roman Catholic |
| Childrens Community School | 17.5 |
Regular elementary or secondary | Pre-KG-5 | 92 | 14.2 | Nonsectarian |
| St Francis Xavier School | 17.6 |
Regular elementary or secondary | Pre-KG-8 | 176 | 17.6 | Roman Catholic |
| Christian Life Academy | 17.8 |
Regular elementary or secondary | Pre-KG-8 | 110 | 9.5 | Assembly of God |
| The Burlington Academy Of Learning | 18.1 |
Early childhood program/child care center | Pre-KG-Trans. KG | 29 | 18.1 | Nonsectarian |
| Immanuel Lutheran School | 18.3 |
Regular elementary or secondary | Pre-KG-8 | 144 | 11.7 | Lutheran Church - Missouri Synod |
| St Anthony School | 18.4 |
Regular elementary or secondary | Pre-KG-8 | 126 | 15.9 | Roman Catholic |
| Ss Peter & Paul School | 18.5 |
Regular elementary or secondary | Pre-KG-8 | 257 | 22.5 | Roman Catholic |
| Montessori Community School At Brookfield | 18.5 |
Montessori | KG-KG | 13 | 3.2 | Nonsectarian |
| Liberty Baptist Child Care | 18.8 |
Early childhood program/child care center | Pre-KG-KG | 3 | 3.0 | Baptist |
| St Joseph School | 18.8 |
Regular elementary or secondary | Pre-KG-8 | 236 | 16.4 | Roman Catholic |
| Country Kids Club | 19.0 |
Early childhood program/child care center | Pre-KG-KG | 20 | 10.0 | Nonsectarian |
| St Hedwig School | 19.2 |
Regular elementary or secondary | Pre-KG-8 | 113 | 13.3 | Roman Catholic |
| St Frances Of Assisi School | 19.3 |
Regular elementary or secondary | Pre-KG-8 | 169 | 15.5 | Roman Catholic |
| St Anthony School | 19.5 |
Regular elementary or secondary | Pre-KG-8 | 178 | 13.9 | Roman Catholic |
| Wesley Learning Center | 19.6 |
Early childhood program/child care center | KG-KG | 125 | 54.4 | Nonsectarian |
| St Rose Of Lima School | 19.9 |
Regular elementary or secondary | Pre-KG-8 | 317 | 12.5 | Roman Catholic |
| Kindercare Learning Center | 20.4 |
Early childhood program/child care center | Pre-KG-Trans. KG | 4 | 4.0 | Nonsectarian |
| St Gregory The Great School | 20.4 |
Regular elementary or secondary | Pre-KG-8 | 252 | 17.4 | Roman Catholic |
| St Matthew | 20.7 |
Regular elementary or secondary | Pre-KG-8 | 235 | 20.8 | Roman Catholic |
| Immanuel Lutheran School | 22.2 |
Regular elementary or secondary | Pre-KG-8 | 97 | 12.0 | Lutheran Church - Missouri Synod |
| The Fraser-woods School | 22.2 |
Montessori | Pre-KG-8 | 140 | 6.0 | Nonsectarian |
| St Joseph Elementary School | 22.5 |
Regular elementary or secondary | Pre-KG-8 | 329 | 16.0 | Roman Catholic |
| Housatonic Valley Waldorf School | 22.6 |
Special program emphasis | Pre-KG-7 | 120 | 8.3 | Nonsectarian |
| Hudson County Montessori School | 22.6 |
Montessori | Pre-KG-8 | 98 | 6.0 | Nonsectarian |
| Great Beginnings | 22.7 |
Early childhood program/child care center | Pre-KG-Trans. KG | 24 | 8.6 | Nonsectarian |
| Sacred Heart School | 22.7 |
Regular elementary or secondary | Pre-KG-4 | 79 | 12.0 | Roman Catholic |
| St Thomas School | 22.8 |
Regular elementary or secondary | Pre-KG-7 | 123 | 11.9 | Roman Catholic |
| St Peter - Sacred Heart Upper School | 22.9 |
Regular elementary or secondary | 5-8 | 68 | 12.1 | Roman Catholic |
| St Mary Elementary School | 23.1 |
Regular elementary or secondary | Pre-KG-8 | 201 | 15.5 | Roman Catholic |
| Webb School At Cheshire | 23.1 |
Special education | 1-8 | 30 | 3.3 | Nonsectarian |
| St Dominic School | 24.0 |
Regular elementary or secondary | Pre-KG-5 | 160 | 18.0 | Roman Catholic |
| St Bridget School | 24.8 |
Regular elementary or secondary | Pre-KG-8 | 352 | 15.9 | Roman Catholic |
