| Westchester Fairfield Hebrew Academy | 2.3 |
Regular elementary or secondary | KG-8 | 171 | 6.1 | Jewish |
| Greenwich Kokusai Gakuen | 2.5 |
Early childhood program/child care center | Pre-KG-KG | 5 | 0.6 | Nonsectarian |
| Whitby School | 3.5 |
Montessori | Pre-KG-8 | 158 | 5.1 | Nonsectarian |
| Grace Christian School | 4.2 |
Regular elementary or secondary | Pre-KG-7 | 47 | 4.7 | Christian (no specific denomination) |
| The Mead School | 4.2 |
Alternative/other | Pre-KG-8 | 111 | 5.0 | Nonsectarian |
| Waterside School | 4.4 |
Regular elementary or secondary | KG-5 | 96 | 5.0 | Nonsectarian |
| The Long Ridge School | 4.9 |
Alternative/other | Pre-KG-5 | 88 | 7.6 | Nonsectarian |
| Trinity Catholic Middle | 4.9 |
Regular elementary or secondary | 6-8 | 239 | 12.5 | Roman Catholic |
| St Cecilia Elementary School | 5.2 |
Regular elementary or secondary | Pre-KG-5 | 251 | 16.4 | Roman Catholic |
| Holy Spirit School | 5.3 |
Regular elementary or secondary | Pre-KG-5 | 81 | 9.6 | Roman Catholic |
| The Children's School | 5.3 |
Montessori | Pre-KG-2 | 56 | 6.8 | Nonsectarian |
| Our Lady Star Of The Sea | 5.5 |
Regular elementary or secondary | Pre-KG-5 | 101 | 12.2 | Roman Catholic |
| Our Lady Of Grace Nursery School And Kindergarten | 5.5 |
Early childhood program/child care center | Pre-KG-KG | 20 | 7.7 | Roman Catholic |
| The Canaan Ridge School | 6.1 |
Montessori | Pre-KG-2 | 29 | 4.8 | Nonsectarian |
| Bi-cultural Day School | 6.5 |
Regular elementary or secondary | Pre-KG-8 | 404 | 6.0 | Jewish |
| Pear Tree Point School | 7.5 |
Regular elementary or secondary | Pre-KG-5 | 205 | 6.7 | Nonsectarian |
| St Aloysius Diocesan Elementary School | 8.5 |
Regular elementary or secondary | KG-8 | 192 | 9.6 | Roman Catholic |
| Parkway Christian Academy Happy Time Nursery | 9.9 |
Regular elementary or secondary | Pre-KG-6 | 18 | 1.1 | Assembly of God |
| Connecticut Friends School | 10.6 |
Regular elementary or secondary | KG-8 | 41 | 5.6 | Friends |
| All Saints Catholic School | 11.7 |
Regular elementary or secondary | Pre-KG-8 | 646 | 17.6 | Roman Catholic |
| The Montessori School | 12.9 |
Montessori | Pre-KG-6 | 93 | 13.1 | Nonsectarian |
| Our Lady Of Fatima School | 13.1 |
Regular elementary or secondary | Pre-KG-8 | 147 | 9.4 | Roman Catholic |
| Landmark Academy | 14.1 |
Early childhood program/child care center | Pre-KG-Trans. KG | 30 | 6.0 | Nonsectarian |
| The Learning Community Day School | 15.0 |
Early childhood program/child care center | KG-KG | 15 | 9.4 | Nonsectarian |
| Town & Country Montessori School, Inc. | 15.1 |
Montessori | Pre-KG-KG | 10 | 3.5 | Nonsectarian |
| Ridgefield Montessori School | 15.6 |
Montessori | Pre-KG-KG | 27 | 2.9 | Nonsectarian |
| Methodist Nursery School | 15.6 |
Early childhood program/child care center | Pre-KG-KG | 29 | 19.3 | Methodist |
| Sant Mary School | 15.9 |
Regular elementary or secondary | Pre-KG-8 | 197 | 10.4 | Roman Catholic |
| Ridgefield Academy | 16.4 |
Regular elementary or secondary | Pre-KG-8 | 301 | 8.1 | Nonsectarian |
| Landmark Of Ridgefield Academy | 16.6 |
Early childhood program/child care center | Pre-KG-Trans. KG | 18 | 30.0 | Nonsectarian |
| St Thomas Aquinas Elem School | 19.4 |
Regular elementary or secondary | Pre-KG-8 | 382 | 15.5 | Roman Catholic |
| Great Beginnings Montessori School | 20.0 |
Montessori | Pre-KG-KG | 18 | 6.0 | Nonsectarian |
| Hunt Ridge Montessori School | 20.0 |
Montessori | Pre-KG-KG | 22 | 2.6 | Nonsectarian |
| Holy Family School | 21.5 |
Regular elementary or secondary | Pre-KG-8 | 156 | 13.4 | Roman Catholic |
| St Ann School | 21.6 |
Regular elementary or secondary | Pre-KG-8 | 172 | 11.2 | Roman Catholic |
| Maimonides Academy | 21.6 |
Regular elementary or secondary | Pre-KG-5 | 33 | 4.8 | Jewish |
| Hillel Academy | 21.9 |
Regular elementary or secondary | Pre-KG-8 | 24 | 2.8 | Jewish |
| The Unquowa School | 22.1 |
Regular elementary or secondary | Pre-KG-8 | 147 | 5.5 | Nonsectarian |
| Our Lady Of The Assumption School | 22.3 |
Regular elementary or secondary | Pre-KG-8 | 179 | 11.5 | Roman Catholic |
| St Peter School | 22.5 |
Regular elementary or secondary | KG-8 | 201 | 19.1 | Roman Catholic |
| St Andrew School | 23.2 |
Regular elementary or secondary | Pre-KG-8 | 220 | 16.5 | Roman Catholic |
| St Raphael Elementary School | 23.5 |
Regular elementary or secondary | Pre-KG-8 | 204 | 18.1 | Roman Catholic |
| St Augustine Cathedral School | 23.5 |
Regular elementary or secondary | Pre-KG-8 | 205 | 16.4 | Roman Catholic |
| Bridgeport Hope School | 23.6 |
Regular elementary or secondary | KG-8 | 52 | 6.9 | Christian (no specific denomination) |
| St Theresa School | 23.8 |
Regular elementary or secondary | Pre-KG-8 | 136 | 6.7 | Roman Catholic |
| St Peter - Sacred Heart Upper School | 24.0 |
Regular elementary or secondary | 5-8 | 68 | 12.1 | Roman Catholic |
| Sacred Heart School | 24.2 |
Regular elementary or secondary | Pre-KG-4 | 79 | 12.0 | Roman Catholic |
| Fairfield County Sda School | 24.2 |
Regular elementary or secondary | KG-8 | 42 | 9.1 | Seventh-Day Adventist |
| Hudson County Montessori School | 24.3 |
Montessori | Pre-KG-8 | 98 | 6.0 | Nonsectarian |
| St Mary Elementary School | 24.4 |
Regular elementary or secondary | Pre-KG-8 | 201 | 15.5 | Roman Catholic |
| St Joseph Elementary School | 24.4 |
Regular elementary or secondary | Pre-KG-8 | 329 | 16.0 | Roman Catholic |
| Immanuel Lutheran School | 24.7 |
Regular elementary or secondary | Pre-KG-8 | 97 | 12.0 | Lutheran Church - Missouri Synod |
| Love Christian Academy | 25.0 |
Special program emphasis | KG-4 | 62 | 10.3 | Christian (no specific denomination) |
