| Hudson County Montessori School | 0.0 |
Montessori | Pre-KG-8 | 98 | 6.0 | Nonsectarian |
| Sacred Heart School | 0.7 |
Regular elementary or secondary | Pre-KG-4 | 79 | 12.0 | Roman Catholic |
| St Peter - Sacred Heart Upper School | 1.0 |
Regular elementary or secondary | 5-8 | 68 | 12.1 | Roman Catholic |
| St Joseph Elementary School | 1.6 |
Regular elementary or secondary | Pre-KG-8 | 329 | 16.0 | Roman Catholic |
| Immanuel Lutheran School | 2.2 |
Regular elementary or secondary | Pre-KG-8 | 97 | 12.0 | Lutheran Church - Missouri Synod |
| St Mary Elementary School | 2.4 |
Regular elementary or secondary | Pre-KG-8 | 201 | 15.5 | Roman Catholic |
| St Gregory The Great School | 2.5 |
Regular elementary or secondary | Pre-KG-8 | 252 | 17.4 | Roman Catholic |
| Kindercare Learning Center | 3.1 |
Early childhood program/child care center | Pre-KG-Trans. KG | 4 | 4.0 | Nonsectarian |
| Country Kids Club | 3.7 |
Early childhood program/child care center | Pre-KG-KG | 20 | 10.0 | Nonsectarian |
| Maimonides Academy | 3.7 |
Regular elementary or secondary | Pre-KG-5 | 33 | 4.8 | Jewish |
| Housatonic Valley Waldorf School | 4.0 |
Special program emphasis | Pre-KG-7 | 120 | 8.3 | Nonsectarian |
| Montessori Community School At Brookfield | 4.4 |
Montessori | KG-KG | 13 | 3.2 | Nonsectarian |
| Christian Life Academy | 4.8 |
Regular elementary or secondary | Pre-KG-8 | 110 | 9.5 | Assembly of God |
| St Joseph Elementary School | 5.7 |
Regular elementary or secondary | Pre-KG-8 | 147 | 11.4 | Roman Catholic |
| Kids Castle Child Care Learning Center | 6.3 |
Early childhood program/child care center | Pre-KG-KG | 8 | 8.0 | Nonsectarian |
| St Rose Of Lima School | 7.0 |
Regular elementary or secondary | Pre-KG-8 | 317 | 12.5 | Roman Catholic |
| The Fraser-woods School | 7.6 |
Montessori | Pre-KG-8 | 140 | 6.0 | Nonsectarian |
| Wesley Learning Center | 7.8 |
Early childhood program/child care center | KG-KG | 125 | 54.4 | Nonsectarian |
| Ridgefield Academy | 8.4 |
Regular elementary or secondary | Pre-KG-8 | 301 | 8.1 | Nonsectarian |
| Sant Mary School | 8.4 |
Regular elementary or secondary | Pre-KG-8 | 197 | 10.4 | Roman Catholic |
| Ridgefield Montessori School | 8.8 |
Montessori | Pre-KG-KG | 27 | 2.9 | Nonsectarian |
| Methodist Nursery School | 8.8 |
Early childhood program/child care center | Pre-KG-KG | 29 | 19.3 | Methodist |
| Landmark Of Ridgefield Academy | 9.0 |
Early childhood program/child care center | Pre-KG-Trans. KG | 18 | 30.0 | Nonsectarian |
| Tutor Time Child Care Learning Center | 9.6 |
Early childhood program/child care center | Pre-KG-KG | 6 | 6.0 | Nonsectarian |
| Town & Country Montessori School, Inc. | 11.1 |
Montessori | Pre-KG-KG | 10 | 3.5 | Nonsectarian |
| Magic Kingdom Day Nursery & Kindergarten | 11.9 |
Early childhood program/child care center | Pre-KG-KG | 16 | 16.0 | Nonsectarian |
| Kindercare Learning Center Inc | 12.1 |
Early childhood program/child care center | Pre-KG-KG | 12 | 10.9 | Nonsectarian |
| St Jude School | 12.3 |
Regular elementary or secondary | Pre-KG-8 | 156 | 11.9 | Roman Catholic |
| Our Lady Of Fatima School | 14.0 |
Regular elementary or secondary | Pre-KG-8 | 147 | 9.4 | Roman Catholic |
| Creative Arts Studio | 14.9 |
Early childhood program/child care center | Pre-KG-KG | 24 | 8.0 | Nonsectarian |
| St Theresa School | 15.0 |
Regular elementary or secondary | Pre-KG-8 | 136 | 6.7 | Roman Catholic |
| The Montessori School | 15.3 |
Montessori | Pre-KG-6 | 93 | 13.1 | Nonsectarian |
| Connecticut Friends School | 15.6 |
Regular elementary or secondary | KG-8 | 41 | 5.6 | Friends |
| St Andrew School | 16.0 |
Regular elementary or secondary | Pre-KG-8 | 220 | 16.5 | Roman Catholic |
| St Lawrence Elementary School | 16.1 |
Regular elementary or secondary | Pre-KG-8 | 255 | 18.2 | Roman Catholic |
| Hillel Academy | 16.4 |
Regular elementary or secondary | Pre-KG-8 | 24 | 2.8 | Jewish |
| Fairfield County Sda School | 16.8 |
Regular elementary or secondary | KG-8 | 42 | 9.1 | Seventh-Day Adventist |
| The Unquowa School | 16.9 |
Regular elementary or secondary | Pre-KG-8 | 147 | 5.5 | Nonsectarian |
| Hunt Ridge Montessori School | 17.0 |
Montessori | Pre-KG-KG | 22 | 2.6 | Nonsectarian |
| Our Lady Of The Assumption School | 17.2 |
Regular elementary or secondary | Pre-KG-8 | 179 | 11.5 | Roman Catholic |
| St Aloysius Diocesan Elementary School | 17.2 |
Regular elementary or secondary | KG-8 | 192 | 9.6 | Roman Catholic |
| St Catherine Of Siena School | 17.4 |
Regular elementary or secondary | Pre-KG-8 | 214 | 17.8 | Roman Catholic |
| All Saints Catholic School | 17.4 |
Regular elementary or secondary | Pre-KG-8 | 646 | 17.6 | Roman Catholic |
| Montessori Center For Early Learning | 17.6 |
Montessori | Pre-KG-KG | 17 | 6.1 | Nonsectarian |
| Landmark Academy | 17.8 |
Early childhood program/child care center | Pre-KG-Trans. KG | 30 | 6.0 | Nonsectarian |
| Parkway Christian Academy Happy Time Nursery | 17.8 |
Regular elementary or secondary | Pre-KG-6 | 18 | 1.1 | Assembly of God |
| St Joseph School | 18.0 |
Regular elementary or secondary | Pre-KG-8 | 179 | 14.8 | Roman Catholic |
| Bi-cultural Day School | 18.0 |
Regular elementary or secondary | Pre-KG-8 | 404 | 6.0 | Jewish |
| Holy Family School | 18.1 |
Regular elementary or secondary | Pre-KG-8 | 156 | 13.4 | Roman Catholic |
| St Mary & St Michael School | 18.3 |
Regular elementary or secondary | Pre-KG-8 | 167 | 16.1 | Roman Catholic |
| The Canaan Ridge School | 18.4 |
Montessori | Pre-KG-2 | 29 | 4.8 | Nonsectarian |
| Assumption School | 18.4 |
Regular elementary or secondary | Pre-KG-8 | 224 | 18.8 | Roman Catholic |
| St Raphael Elementary School | 18.5 |
Regular elementary or secondary | Pre-KG-8 | 204 | 18.1 | Roman Catholic |
| St Peter School | 18.6 |
Regular elementary or secondary | KG-8 | 201 | 19.1 | Roman Catholic |
| The Learning Community Day School | 18.7 |
Early childhood program/child care center | KG-KG | 15 | 9.4 | Nonsectarian |
| St Augustine Cathedral School | 19.0 |
Regular elementary or secondary | Pre-KG-8 | 205 | 16.4 | Roman Catholic |
| A Child's Garden Inc | 19.0 |
Early childhood program/child care center | Pre-KG-KG | 12 | 6.0 | Nonsectarian |
| Holy Spirit School | 19.2 |
Regular elementary or secondary | Pre-KG-5 | 81 | 9.6 | Roman Catholic |
| St Mark School | 19.2 |
Regular elementary or secondary | KG-8 | 183 | 18.5 | Roman Catholic |
| St Thomas Aquinas Elem School | 19.4 |
Regular elementary or secondary | Pre-KG-8 | 382 | 15.5 | Roman Catholic |
| St Ann School | 19.4 |
Regular elementary or secondary | Pre-KG-8 | 172 | 11.2 | Roman Catholic |
| St Ambrose School | 19.4 |
Regular elementary or secondary | Pre-KG-8 | 293 | 14.6 | Roman Catholic |
| The Children's School | 19.5 |
Montessori | Pre-KG-2 | 56 | 6.8 | Nonsectarian |
| Great Beginnings Montessori School | 19.5 |
Montessori | Pre-KG-KG | 18 | 6.0 | Nonsectarian |
| The Long Ridge School | 19.5 |
Alternative/other | Pre-KG-5 | 88 | 7.6 | Nonsectarian |
| Bridgeport Hope School | 19.9 |
Regular elementary or secondary | KG-8 | 52 | 6.9 | Christian (no specific denomination) |
| Love Christian Academy | 19.9 |
Special program emphasis | KG-4 | 62 | 10.3 | Christian (no specific denomination) |
| The Mead School | 20.2 |
Alternative/other | Pre-KG-8 | 111 | 5.0 | Nonsectarian |
| St Frances Of Assisi School | 20.7 |
Regular elementary or secondary | Pre-KG-8 | 169 | 15.5 | Roman Catholic |
| St Cecilia Elementary School | 20.7 |
Regular elementary or secondary | Pre-KG-5 | 251 | 16.4 | Roman Catholic |
| The Foundation School | 20.8 |
Special education | Pre-KG-8 | 176 | 2.5 | Nonsectarian |
| St James School | 20.9 |
Regular elementary or secondary | Pre-KG-8 | 390 | 13.5 | Roman Catholic |
| Trinity Catholic Middle | 21.3 |
Regular elementary or secondary | 6-8 | 239 | 12.5 | Roman Catholic |
| St Hedwig School | 21.5 |
Regular elementary or secondary | Pre-KG-8 | 113 | 13.3 | Roman Catholic |
| Grace Christian School | 21.5 |
Regular elementary or secondary | Pre-KG-7 | 47 | 4.7 | Christian (no specific denomination) |
| St Ann School | 21.6 |
Regular elementary or secondary | Pre-KG-8 | 110 | 8.1 | Roman Catholic |
| St John The Evangelist | 21.9 |
Regular elementary or secondary | Pre-KG-8 | 181 | 15.1 | Roman Catholic |
| Our Lady Of Mount Carmel School | 22.1 |
Regular elementary or secondary | Pre-KG-8 | 204 | 15.1 | Roman Catholic |
| Blessed Sacrament School | 22.2 |
Regular elementary or secondary | Pre-KG-8 | 300 | 28.6 | Roman Catholic |
| Our Lady Of Grace Nursery School And Kindergarten | 22.4 |
Early childhood program/child care center | Pre-KG-KG | 20 | 7.7 | Roman Catholic |
| Ezra Academy | 22.4 |
Regular elementary or secondary | KG-8 | 181 | 6.1 | Jewish |
| Whitby School | 22.4 |
Montessori | Pre-KG-8 | 158 | 5.1 | Nonsectarian |
| Washington Montessori School | 22.6 |
Montessori | Pre-KG-8 | 234 | 8.1 | Nonsectarian |
| St Mary Magdalen School | 22.7 |
Regular elementary or secondary | Pre-KG-8 | 246 | 23.2 | Roman Catholic |
| St Mary School | 22.8 |
Regular elementary or secondary | Pre-KG-8 | 263 | 12.1 | Roman Catholic |
| St Francis Xavier School | 23.1 |
Regular elementary or secondary | Pre-KG-8 | 176 | 17.6 | Roman Catholic |
| St Mary | 23.3 |
Regular elementary or secondary | Pre-KG-8 | 414 | 24.4 | Roman Catholic |
| Yeshiva K'tana Of Waterbury | 23.5 |
Regular elementary or secondary | Pre-KG-7 | 117 | 7.3 | Jewish |
| Children's House Of Montessori Inc | 23.7 |
Montessori | Pre-KG-KG | 9 | 3.0 | Nonsectarian |
| Pear Tree Point School | 23.7 |
Regular elementary or secondary | Pre-KG-5 | 205 | 6.7 | Nonsectarian |
| Childrens Community School | 23.8 |
Regular elementary or secondary | Pre-KG-5 | 92 | 14.2 | Nonsectarian |
| New England School Of Montessori | 24.3 |
Montessori | Pre-KG-3 | 14 | 4.7 | Nonsectarian |
| Greenwich Catholic School | 24.3 |
Regular elementary or secondary | Pre-KG-8 | 355 | 11.9 | Roman Catholic |
| Ss Peter & Paul School | 24.3 |
Regular elementary or secondary | Pre-KG-8 | 257 | 22.5 | Roman Catholic |
| St Aedan School | 24.6 |
Regular elementary or secondary | Pre-KG-8 | 160 | 14.6 | Roman Catholic |
