| St Augustine Cathedral School | 1.0 |
Regular elementary or secondary | Pre-KG-8 | 205 | 16.4 | Roman Catholic |
| St Raphael Elementary School | 1.4 |
Regular elementary or secondary | Pre-KG-8 | 204 | 18.1 | Roman Catholic |
| Love Christian Academy | 1.5 |
Special program emphasis | KG-4 | 62 | 10.3 | Christian (no specific denomination) |
| St Peter School | 1.5 |
Regular elementary or secondary | KG-8 | 201 | 19.1 | Roman Catholic |
| St Ann School | 2.1 |
Regular elementary or secondary | Pre-KG-8 | 172 | 11.2 | Roman Catholic |
| St Ambrose School | 2.1 |
Regular elementary or secondary | Pre-KG-8 | 293 | 14.6 | Roman Catholic |
| Holy Family School | 2.5 |
Regular elementary or secondary | Pre-KG-8 | 156 | 13.4 | Roman Catholic |
| Our Lady Of The Assumption School | 2.7 |
Regular elementary or secondary | Pre-KG-8 | 179 | 11.5 | Roman Catholic |
| The Unquowa School | 3.0 |
Regular elementary or secondary | Pre-KG-8 | 147 | 5.5 | Nonsectarian |
| St James School | 3.5 |
Regular elementary or secondary | Pre-KG-8 | 390 | 13.5 | Roman Catholic |
| Hillel Academy | 3.5 |
Regular elementary or secondary | Pre-KG-8 | 24 | 2.8 | Jewish |
| Fairfield County Sda School | 3.6 |
Regular elementary or secondary | KG-8 | 42 | 9.1 | Seventh-Day Adventist |
| Great Beginnings Montessori School | 3.6 |
Montessori | Pre-KG-KG | 18 | 6.0 | Nonsectarian |
| St Andrew School | 4.0 |
Regular elementary or secondary | Pre-KG-8 | 220 | 16.5 | Roman Catholic |
| Hunt Ridge Montessori School | 4.1 |
Montessori | Pre-KG-KG | 22 | 2.6 | Nonsectarian |
| St Thomas Aquinas Elem School | 4.2 |
Regular elementary or secondary | Pre-KG-8 | 382 | 15.5 | Roman Catholic |
| Montessori Center For Early Learning | 4.3 |
Montessori | Pre-KG-KG | 17 | 6.1 | Nonsectarian |
| St Ann School | 5.2 |
Regular elementary or secondary | Pre-KG-8 | 110 | 8.1 | Roman Catholic |
| St Mark School | 5.2 |
Regular elementary or secondary | KG-8 | 183 | 18.5 | Roman Catholic |
| St Theresa School | 5.3 |
Regular elementary or secondary | Pre-KG-8 | 136 | 6.7 | Roman Catholic |
| St Catherine Of Siena School | 5.7 |
Regular elementary or secondary | Pre-KG-8 | 214 | 17.8 | Roman Catholic |
| St Mary School | 8.3 |
Regular elementary or secondary | Pre-KG-8 | 263 | 12.1 | Roman Catholic |
| The Learning Community Day School | 8.6 |
Early childhood program/child care center | KG-KG | 15 | 9.4 | Nonsectarian |
| St Lawrence Elementary School | 9.3 |
Regular elementary or secondary | Pre-KG-8 | 255 | 18.2 | Roman Catholic |
| Landmark Academy | 9.6 |
Early childhood program/child care center | Pre-KG-Trans. KG | 30 | 6.0 | Nonsectarian |
| Magic Kingdom Day Nursery & Kindergarten | 9.6 |
Early childhood program/child care center | Pre-KG-KG | 16 | 16.0 | Nonsectarian |
| A Child's Garden Inc | 10.1 |
Early childhood program/child care center | Pre-KG-KG | 12 | 6.0 | Nonsectarian |
| Kindercare Learning Center Inc | 10.3 |
Early childhood program/child care center | Pre-KG-KG | 12 | 10.9 | Nonsectarian |
| New England School Of Montessori | 10.3 |
Montessori | Pre-KG-3 | 14 | 4.7 | Nonsectarian |
| The Foundation School | 10.9 |
Special education | Pre-KG-8 | 176 | 2.5 | Nonsectarian |
| St Jude School | 11.3 |
Regular elementary or secondary | Pre-KG-8 | 156 | 11.9 | Roman Catholic |
| St Joseph School | 11.5 |
Regular elementary or secondary | Pre-KG-8 | 179 | 14.8 | Roman Catholic |
| Tutor Time Child Care Learning Center | 11.6 |
Early childhood program/child care center | Pre-KG-KG | 6 | 6.0 | Nonsectarian |
| The Montessori School | 11.6 |
Montessori | Pre-KG-6 | 93 | 13.1 | Nonsectarian |
| All Saints Catholic School | 12.1 |
Regular elementary or secondary | Pre-KG-8 | 646 | 17.6 | Roman Catholic |
| St Mary & St Michael School | 12.2 |
Regular elementary or secondary | Pre-KG-8 | 167 | 16.1 | Roman Catholic |
| Our Lady Of Fatima School | 12.4 |
Regular elementary or secondary | Pre-KG-8 | 147 | 9.4 | Roman Catholic |
| Our Lady Of Victory School | 12.8 |
Regular elementary or secondary | Pre-KG-8 | 167 | 15.3 | Roman Catholic |
| Town & Country Montessori School, Inc. | 13.1 |
Montessori | Pre-KG-KG | 10 | 3.5 | Nonsectarian |
| Assumption School | 13.8 |
Regular elementary or secondary | Pre-KG-8 | 224 | 18.8 | Roman Catholic |
| Parkway Christian Academy Happy Time Nursery | 14.0 |
Regular elementary or secondary | Pre-KG-6 | 18 | 1.1 | Assembly of God |
| Landmark Of Ridgefield Academy | 14.1 |
Early childhood program/child care center | Pre-KG-Trans. KG | 18 | 30.0 | Nonsectarian |
| Connecticut Friends School | 14.3 |
Regular elementary or secondary | KG-8 | 41 | 5.6 | Friends |
| St Lawrence School | 14.6 |
Regular elementary or secondary | Pre-KG-8 | 156 | 13.4 | Roman Catholic |
| Ezra Academy | 15.1 |
Regular elementary or secondary | KG-8 | 181 | 6.1 | Jewish |
| The Fraser-woods School | 15.6 |
Montessori | Pre-KG-8 | 140 | 6.0 | Nonsectarian |
| St Aloysius Diocesan Elementary School | 15.9 |
Regular elementary or secondary | KG-8 | 192 | 9.6 | Roman Catholic |
| St Aedan School | 16.0 |
Regular elementary or secondary | Pre-KG-8 | 160 | 14.6 | Roman Catholic |
| St Martinde Porres Academy | 16.1 |
Special program emphasis | Pre-KG-8 | 75 | 7.1 | Roman Catholic |
| Yale Child Study Center School | 16.3 |
Special education | KG-7 | 18 | 6.9 | Nonsectarian |
| Children's House Of Montessori Inc | 16.3 |
Montessori | Pre-KG-KG | 9 | 3.0 | Nonsectarian |
| St Brendan School | 16.4 |
Regular elementary or secondary | KG-8 | 161 | 14.0 | Roman Catholic |
| St Bernadette Catholic School | 16.7 |
Regular elementary or secondary | Pre-KG-8 | 138 | 10.2 | Roman Catholic |
| Housatonic Valley Waldorf School | 17.0 |
Special program emphasis | Pre-KG-7 | 120 | 8.3 | Nonsectarian |
| Pear Tree Point School | 17.4 |
Regular elementary or secondary | Pre-KG-5 | 205 | 6.7 | Nonsectarian |
| Cold Spring School | 17.6 |
Regular elementary or secondary | KG-6 | 115 | 5.3 | Nonsectarian |
| Ridgefield Montessori School | 17.7 |
Montessori | Pre-KG-KG | 27 | 2.9 | Nonsectarian |
| Methodist Nursery School | 17.7 |
Early childhood program/child care center | Pre-KG-KG | 29 | 19.3 | Methodist |
| St Mary Elementary School | 17.8 |
Regular elementary or secondary | Pre-KG-8 | 201 | 15.5 | Roman Catholic |
| Calvin Hill Daycare Center & Klf Kindergarten | 17.9 |
Early childhood program/child care center | Pre-KG-KG | 15 | 1.1 | Nonsectarian |
| St Rose Of Lima School | 17.9 |
Regular elementary or secondary | Pre-KG-8 | 123 | 13.7 | Roman Catholic |
| St Vincent De Paul School | 18.0 |
Regular elementary or secondary | Pre-KG-8 | 185 | 16.7 | Roman Catholic |
| Leila Day Nurseries | 18.0 |
Early childhood program/child care center | Pre-KG-KG | 10 | 3.5 | Nonsectarian |
| St Rose Of Lima School | 18.1 |
Regular elementary or secondary | Pre-KG-8 | 317 | 12.5 | Roman Catholic |
| Wesley Learning Center | 18.2 |
Early childhood program/child care center | KG-KG | 125 | 54.4 | Nonsectarian |
| St Francis School | 18.2 |
Regular elementary or secondary | KG-8 | 189 | 18.2 | Roman Catholic |
| Sant Mary School | 18.2 |
Regular elementary or secondary | Pre-KG-8 | 197 | 10.4 | Roman Catholic |
| Our Lady Of Grace Nursery School And Kindergarten | 18.3 |
Early childhood program/child care center | Pre-KG-KG | 20 | 7.7 | Roman Catholic |
| St Thomas's Day School | 18.3 |
Regular elementary or secondary | Pre-KG-6 | 136 | 7.7 | Episcopal |
| St Cecilia Elementary School | 18.4 |
Regular elementary or secondary | Pre-KG-5 | 251 | 16.4 | Roman Catholic |
| Trinity Catholic Middle | 18.7 |
Regular elementary or secondary | 6-8 | 239 | 12.5 | Roman Catholic |
| Bi-cultural Day School | 18.8 |
Regular elementary or secondary | Pre-KG-8 | 404 | 6.0 | Jewish |
| The Children's School | 19.0 |
Montessori | Pre-KG-2 | 56 | 6.8 | Nonsectarian |
| Sacred Heart Manor | 19.1 |
Early childhood program/child care center | Pre-KG-KG | 10 | 10.0 | Roman Catholic |
| St Stephen School | 19.3 |
Regular elementary or secondary | Pre-KG-8 | 165 | 15.0 | Roman Catholic |
| Holy Spirit School | 19.4 |
Regular elementary or secondary | Pre-KG-5 | 81 | 9.6 | Roman Catholic |
| Grace Christian School | 19.4 |
Regular elementary or secondary | Pre-KG-7 | 47 | 4.7 | Christian (no specific denomination) |
| St Rita Elementary School | 19.6 |
Regular elementary or secondary | Pre-KG-8 | 409 | 17.6 | Roman Catholic |
| Kindercare Learning Center | 19.8 |
Early childhood program/child care center | Pre-KG-Trans. KG | 4 | 4.0 | Nonsectarian |
| Our Lady Star Of The Sea | 19.9 |
Regular elementary or secondary | Pre-KG-5 | 101 | 12.2 | Roman Catholic |
| Hudson County Montessori School | 19.9 |
Montessori | Pre-KG-8 | 98 | 6.0 | Nonsectarian |
| Ridgefield Academy | 20.1 |
Regular elementary or secondary | Pre-KG-8 | 301 | 8.1 | Nonsectarian |
| Sacred Heart School | 20.4 |
Regular elementary or secondary | Pre-KG-4 | 79 | 12.0 | Roman Catholic |
| St Peter - Sacred Heart Upper School | 20.5 |
Regular elementary or secondary | 5-8 | 68 | 12.1 | Roman Catholic |
| St Mary School | 21.0 |
Regular elementary or secondary | Pre-KG-8 | 171 | 9.7 | Roman Catholic |
| Waterside School | 21.1 |
Regular elementary or secondary | KG-5 | 96 | 5.0 | Nonsectarian |
| Maimonides Academy | 21.1 |
Regular elementary or secondary | Pre-KG-5 | 33 | 4.8 | Jewish |
| Laurel Oaks Adventist School | 21.2 |
Regular elementary or secondary | 1-8 | 27 | 13.5 | Seventh-Day Adventist |
| The Canaan Ridge School | 21.3 |
Montessori | Pre-KG-2 | 29 | 4.8 | Nonsectarian |
| St Joseph Elementary School | 21.4 |
Regular elementary or secondary | Pre-KG-8 | 329 | 16.0 | Roman Catholic |
| Montessori Community School At Brookfield | 21.4 |
Montessori | KG-KG | 13 | 3.2 | Nonsectarian |
| The Mead School | 21.6 |
Alternative/other | Pre-KG-8 | 111 | 5.0 | Nonsectarian |
| The Long Ridge School | 21.6 |
Alternative/other | Pre-KG-5 | 88 | 7.6 | Nonsectarian |
| Country Kids Club | 22.0 |
Early childhood program/child care center | Pre-KG-KG | 20 | 10.0 | Nonsectarian |
| Immanuel Lutheran School | 22.0 |
Regular elementary or secondary | Pre-KG-8 | 97 | 12.0 | Lutheran Church - Missouri Synod |
| St Gregory The Great School | 22.2 |
Regular elementary or secondary | Pre-KG-8 | 252 | 17.4 | Roman Catholic |
| Christian Life Academy | 22.7 |
Regular elementary or secondary | Pre-KG-8 | 110 | 9.5 | Assembly of God |
| Greenwich Kokusai Gakuen | 22.9 |
Early childhood program/child care center | Pre-KG-KG | 5 | 0.6 | Nonsectarian |
| St Joseph Elementary School | 23.1 |
Regular elementary or secondary | Pre-KG-8 | 147 | 11.4 | Roman Catholic |
| The Pine Brook School | 23.2 |
Regular elementary or secondary | Pre-KG-8 | 52 | 4.1 | Nonsectarian |
| St Frances Of Assisi School | 23.5 |
Regular elementary or secondary | Pre-KG-8 | 169 | 15.5 | Roman Catholic |
| Greenwich Catholic School | 23.6 |
Regular elementary or secondary | Pre-KG-8 | 355 | 11.9 | Roman Catholic |
| St Hedwig School | 24.3 |
Regular elementary or secondary | Pre-KG-8 | 113 | 13.3 | Roman Catholic |
| Kids Castle Child Care Learning Center | 24.4 |
Early childhood program/child care center | Pre-KG-KG | 8 | 8.0 | Nonsectarian |
| Shoreline School Of Montessori | 24.4 |
Montessori | Pre-KG-KG | 22 | 22.0 | Nonsectarian |
| Whitby School | 24.6 |
Montessori | Pre-KG-8 | 158 | 5.1 | Nonsectarian |
| Creative Arts Studio | 24.7 |
Early childhood program/child care center | Pre-KG-KG | 24 | 8.0 | Nonsectarian |
| Westchester Fairfield Hebrew Academy | 24.9 |
Regular elementary or secondary | KG-8 | 171 | 6.1 | Jewish |
