| Katy Adventist Christian School | 0.0 |
Regular elementary or secondary | 3-8 | 2 | 2.0 | Seventh-Day Adventist |
| Primrose School Of North Mason Creek | 4.3 |
Early childhood program/child care center | Pre-KG-KG | 16 | 8.0 | Nonsectarian |
| Crosspoint Christian School | 5.2 |
Early childhood program/child care center | Pre-KG-Trans. KG | 27 | 14.2 | Lutheran Church - Missouri Synod |
| Childrens Lighthouse Learning Center | 5.5 |
Early childhood program/child care center | Pre-KG-KG | 15 | 15.0 | Nonsectarian |
| St Peters Early Childhood Development Center | 5.5 |
Early childhood program/child care center | Pre-KG-Trans. KG | 18 | 5.0 | Methodist |
| Child's Play Learning Center Inc | 6.0 |
Early childhood program/child care center | Pre-KG-Trans. KG | 16 | 16.0 | Roman Catholic |
| Primrose School Of Kelliwood | 6.2 |
Early childhood program/child care center | Pre-KG-KG | 12 | 12.0 | Nonsectarian |
| Innovative Montessori School - Katy | 6.7 |
Montessori | KG-KG | 4 | 2.0 | Nonsectarian |
| Montessori Moments | 7.0 |
Montessori | Pre-KG-3 | 28 | 13.3 | Nonsectarian |
| Five Star Montessori School At Kinasland Blvd | 7.9 |
Montessori | Pre-KG-Trans. 1 | 3 | 1.5 | Nonsectarian |
| Montessori House For Children | 8.4 |
Montessori | Pre-KG-KG | 15 | 3.8 | Nonsectarian |
| Brookhollow Christian Academy | 9.8 |
Special program emphasis | Pre-KG-2 | 20 | 10.0 | Baptist |
| Early Discovery Montessori School | 10.7 |
Montessori | Pre-KG-1 | 9 | 1.6 | Nonsectarian |
| Smaller Scholars Too | 11.0 |
Montessori | Pre-KG-KG | 24 | 8.0 | Nonsectarian |
| Bear Creek United Methodist Church School | 11.2 |
Early childhood program/child care center | Pre-KG-Trans. KG | 29 | 8.8 | Methodist |
| Montessori Childrens School | 11.3 |
Montessori | Pre-KG-Trans. KG | 12 | 2.7 | Nonsectarian |
| West Oaks Private School | 11.4 |
Early childhood program/child care center | Pre-KG-KG | 7 | 7.0 | Nonsectarian |
| Westlake Child Development Center | 11.5 |
Montessori | Pre-KG-KG | 15 | 10.7 | Nonsectarian |
| John Paul Ii Catholic School | 11.5 |
Regular elementary or secondary | Pre-KG-8 | 634 | 18.4 | Roman Catholic |
| Mission Bend Christian Academy | 12.0 |
Regular elementary or secondary | Pre-KG-6 | 60 | 7.0 | Methodist |
| Five Star Montessori School | 12.1 |
Montessori | Pre-KG-3 | 16 | 14.6 | Nonsectarian |
| Dav Montessori School | 12.2 |
Montessori | Pre-KG-1 | 24 | 12.0 | Nonsectarian |
| Cottage School | 12.3 |
Montessori | Pre-KG-6 | 30 | 7.5 | Nonsectarian |
| Southwest Community Christian Academy | 12.3 |
Regular elementary or secondary | Pre-KG-3 | 46 | 6.7 | Christian (no specific denomination) |
| St Elizabeth Ann Seton School | 12.3 |
Regular elementary or secondary | KG-8 | 474 | 18.4 | Roman Catholic |
| West Montessori School Of Copperfield | 12.4 |
Montessori | Pre-KG-Trans. 1 | 13 | 1.4 | Nonsectarian |
| American Montessori School | 12.6 |
Montessori | Pre-KG-2 | 9 | 9.0 | Nonsectarian |
| The Village School | 12.6 |
Regular elementary or secondary | Pre-KG-8 | 634 | 18.4 | Nonsectarian |
| Simonton Christian Academy | 12.7 |
Regular elementary or secondary | Pre-KG-5 | 24 | 5.0 | Christian (no specific denomination) |
| Memorial Christian Academy | 13.2 |
Regular elementary or secondary | Pre-KG-8 | 76 | 11.0 | Christian (no specific denomination) |
| Sandcastle Montessori Academy | 13.2 |
Montessori | Pre-KG-Trans. KG | 50 | 12.5 | Nonsectarian |
| Smaller Scholars Montessori | 13.3 |
Montessori | Pre-KG-6 | 140 | 9.7 | Nonsectarian |
| Christ Memorial Lutheran Early Childhood Learning | 13.7 |
Early childhood program/child care center | Pre-KG-KG | 13 | 2.1 | Lutheran Church - Missouri Synod |
| Yorkshire Academy | 13.8 |
Regular elementary or secondary | Pre-KG-5 | 119 | 9.3 | Nonsectarian |
| Fellowship Christian Academy | 13.9 |
Regular elementary or secondary | Pre-KG-6 | 67 | 8.1 | Christian (no specific denomination) |
| Cypress Montessori School | 13.9 |
Early childhood program/child care center | Pre-KG-KG | 3 | 0.2 | Nonsectarian |
| Primrose School At Summerwood | 14.1 |
Early childhood program/child care center | Pre-KG-KG | 12 | 12.0 | Nonsectarian |
| Innovative Montessori School | 14.2 |
Montessori | Pre-KG-2 | 10 | 2.5 | Nonsectarian |
| Park Point Montessori | 14.3 |
Montessori | Pre-KG-1 | 48 | 3.3 | Nonsectarian |
| Cy-fair Christian Academy | 14.4 |
Regular elementary or secondary | Pre-KG-8 | 54 | 5.5 | Friends |
| Sherwood Forest Montessori School | 14.4 |
Montessori | Pre-KG-5 | 28 | 7.8 | Nonsectarian |
| Branch School | 14.4 |
Regular elementary or secondary | Pre-KG-5 | 53 | 7.8 | Christian (no specific denomination) |
| Westwood Montessori School | 14.5 |
Montessori | KG-KG | 8 | 4.0 | Nonsectarian |
| The Parish School | 14.9 |
Special education | Pre-KG-5 | 76 | 5.9 | Nonsectarian |
| Christ The Lord Lutheran Elementary School | 15.3 |
Regular elementary or secondary | Pre-KG-8 | 50 | 16.7 | Wisconsin Evangelical Lutheran Synod |
| Darul Arqam School Southwest | 15.3 |
Regular elementary or secondary | Pre-KG-8 | 154 | 10.1 | Islamic |
| Memorial Drive Methodist Weekday School | 15.4 |
Early childhood program/child care center | Pre-KG-KG | 13 | 6.5 | Methodist |
| St John's Methodist School For Little Children | 15.4 |
Early childhood program/child care center | Pre-KG-KG | 8 | 8.0 | Methodist |
| Shady Oak Christian School | 15.6 |
Regular elementary or secondary | Pre-KG-3 | 41 | 12.1 | Christian (no specific denomination) |
| Pines Presbyterian Preschool | 15.7 |
Early childhood program/child care center | Pre-KG-KG | 13 | 4.3 | Presbyterian |
| Memorial Creme De La Creme | 15.8 |
Early childhood program/child care center | Pre-KG-KG | 13 | 2.2 | Nonsectarian |
| God's Rainbow Christian Academy | 16.0 |
Special program emphasis | KG-6 | 21 | 5.4 | Christian (no specific denomination) |
| St John Early Childhood Center | 16.1 |
Early childhood program/child care center | Pre-KG-Trans. KG | 23 | 9.2 | Lutheran Church - Missouri Synod |
| Holy Spirit Episcopal School | 16.2 |
Regular elementary or secondary | Pre-KG-8 | 196 | 6.5 | Episcopal |
| Fort Bend Montessori School | 16.3 |
Montessori | KG-1 | 23 | 3.8 | Nonsectarian |
| New Southwest Montessori | 16.3 |
Montessori | Pre-KG-1 | 20 | 2.3 | Nonsectarian |
| Cambridge Montessori School | 16.3 |
Montessori | Pre-KG-2 | 145 | 29.0 | Nonsectarian |
| Ascension Episcopal School | 16.6 |
Regular elementary or secondary | Pre-KG-5 | 53 | 5.3 | Episcopal |
| Epiphany Lutheran Church School | 16.6 |
Regular elementary or secondary | Pre-KG-7 | 94 | 11.3 | Lutheran Church - Missouri Synod |
| Wesley Academy | 16.8 |
Regular elementary or secondary | Pre-KG-8 | 168 | 10.2 | Methodist |
| 1st United Methd Ch School Little | 16.9 |
Early childhood program/child care center | Pre-KG-Trans. KG | 7 | 3.3 | Methodist |
| Holy Rosary Catholic School | 17.0 |
Regular elementary or secondary | Pre-KG-8 | 205 | 11.4 | Roman Catholic |
| Covenant Academy | 17.1 |
Regular elementary or secondary | KG-8 | 87 | 6.5 | Nonsectarian |
| Faith Lutheran School | 17.1 |
Regular elementary or secondary | KG-8 | 164 | 11.8 | Lutheran Church - Missouri Synod |
| Montessori Morning Glory School | 17.4 |
Montessori | Pre-KG-KG | 3 | 0.8 | Nonsectarian |
| St Cecilia Catholic School | 17.5 |
Regular elementary or secondary | Pre-KG-8 | 483 | 12.0 | Roman Catholic |
| West Chase Methodist School | 17.7 |
Early childhood program/child care center | Pre-KG-KG | 5 | 8.3 | Methodist |
| Sugar Grove Christian School | 17.9 |
Regular elementary or secondary | Pre-KG-6 | 172 | 13.2 | Church of Christ |
| Living Water Christian School | 18.0 |
Regular elementary or secondary | Pre-KG-6 | 51 | 8.6 | Christian (no specific denomination) |
| Montessori Child Dev Center | 18.0 |
Early childhood program/child care center | Pre-KG-KG | 16 | 16.0 | Nonsectarian |
| Cornerstone Christian Academy | 18.0 |
Regular elementary or secondary | Pre-KG-3 | 62 | 9.4 | Church of Christ |
| Kingdom Fellowship Christian Academy | 18.0 |
Early childhood program/child care center | Pre-KG-KG | 12 | 12.0 | Christian (no specific denomination) |
| Montessori-longwood | 18.3 |
Montessori | Pre-KG-KG | 8 | 2.0 | Nonsectarian |
| Primose School Of Greatwood | 18.3 |
Early childhood program/child care center | Pre-KG-KG | 13 | 8.1 | Nonsectarian |
| Clay Road Baptist School | 18.3 |
Regular elementary or secondary | Pre-KG-8 | 135 | 8.4 | Baptist |
| St Francis Episcopal Day | 18.4 |
Regular elementary or secondary | Pre-KG-8 | 644 | 10.6 | Episcopal |
| Montessori-greatwood | 18.4 |
Montessori | Pre-KG-KG | 30 | 7.5 | Nonsectarian |
| St Jerome School | 18.7 |
Regular elementary or secondary | Pre-KG-8 | 296 | 13.4 | Roman Catholic |
| New Beginnings Academy | 18.7 |
Early childhood program/child care center | Pre-KG-Trans. 1 | 17 | 1.6 | Nonsectarian |
| Lakewood Montessori School | 18.7 |
Montessori | Pre-KG-KG | 30 | 5.0 | Nonsectarian |
| The Walden School | 18.7 |
Regular elementary or secondary | Pre-KG-3 | 32 | 8.0 | Nonsectarian |
| Chapelwood School | 18.8 |
Early childhood program/child care center | Pre-KG-Trans. KG | 14 | 7.0 | Methodist |
| Montessori Learning Cottage | 18.9 |
Montessori | Pre-KG-KG | 30 | 7.5 | Nonsectarian |
| Sugar Creek Montessori School | 19.0 |
Montessori | Pre-KG-3 | 54 | 9.0 | Nonsectarian |
| The Woods Private School | 19.0 |
Regular elementary or secondary | Pre-KG-1 | 64 | 17.8 | Nonsectarian |
| Riverbend Montessori School | 19.2 |
Montessori | Pre-KG-5 | 62 | 9.5 | Nonsectarian |
| The Honor Roll School | 19.3 |
Regular elementary or secondary | Pre-KG-8 | 324 | 9.6 | Nonsectarian |
| First Colony Montessori South | 19.4 |
Montessori | Pre-KG-KG | 12 | 6.0 | Nonsectarian |
| Grant Rd Day Care & Kindergarten | 19.4 |
Early childhood program/child care center | Pre-KG-KG | 15 | 13.6 | Nonsectarian |
| Mula Road Child Care | 19.5 |
Alternative/other | Pre-KG-1 | 9 | 3.0 | Nonsectarian |
| St Mark Lutheran School | 19.6 |
Regular elementary or secondary | Pre-KG-8 | 211 | 13.7 | Lutheran Church - Missouri Synod |
| First Colony Montessori | 19.7 |
Montessori | Pre-KG-Trans. KG | 30 | 10.3 | Nonsectarian |
| St Laurence Catholic School | 19.8 |
Regular elementary or secondary | Pre-KG-8 | 658 | 16.9 | Roman Catholic |
| Little Wonders Learning Center | 19.9 |
Early childhood program/child care center | Pre-KG-KG | 5 | 1.7 | Nonsectarian |
| Red Apple Private School | 20.0 |
Regular elementary or secondary | Pre-KG-1 | 12 | 4.0 | Nonsectarian |
| Christian School Of Northwest Houston | 20.2 |
Regular elementary or secondary | Pre-KG-4 | 21 | 8.1 | Church of Christ |
| Greystone House | 20.3 |
Montessori | Pre-KG-KG | 5 | 2.5 | Nonsectarian |
| Willowridge Day Care & Learning Center | 20.3 |
Regular elementary or secondary | Pre-KG-1 | 36 | 18.0 | Baptist |
| The Regis School Of The Sacred Heart | 20.6 |
Regular elementary or secondary | Pre-KG-8 | 163 | 5.7 | Roman Catholic |
| Adventure Preschool & Windwood Christian Academy | 20.7 |
Regular elementary or secondary | Pre-KG-5 | 88 | 8.8 | Presbyterian |
| Southwest Preparatory School | 20.8 |
Regular elementary or secondary | Pre-KG-3 | 50 | 11.6 | Christian (no specific denomination) |
| Madkin Gray Academy | 20.8 |
Regular elementary or secondary | Pre-KG-3 | 50 | 11.6 | Christian (no specific denomination) |
| Memorial Lutheran School | 20.9 |
Regular elementary or secondary | Pre-KG-8 | 119 | 7.5 | Lutheran Church - Missouri Synod |
| Torah Day School | 21.0 |
Regular elementary or secondary | Pre-KG-8 | 84 | 5.2 | Jewish |
| Montessori Learning Institute | 21.1 |
Montessori | Pre-KG-5 | 30 | 6.8 | Nonsectarian |
| Southminster School | 21.2 |
Regular elementary or secondary | Pre-KG-5 | 119 | 4.1 | Presbyterian |
| Living Word Christian Academy | 21.2 |
Regular elementary or secondary | Pre-KG-8 | 55 | 4.6 | Christian (no specific denomination) |
| King N Queen Christian Academy | 21.2 |
Early childhood program/child care center | Pre-KG-KG | 5 | 5.0 | Nonsectarian |
| Robindell Private School | 21.3 |
Regular elementary or secondary | Pre-KG-4 | 200 | 13.3 | Nonsectarian |
| Our Savior Lutheran School | 21.3 |
Regular elementary or secondary | Pre-KG-8 | 179 | 13.8 | Other Lutheran |
| St Michael Catholic School | 21.5 |
Regular elementary or secondary | Pre-KG-8 | 444 | 15.9 | Roman Catholic |
| St Thomas More Parish School | 21.6 |
Regular elementary or secondary | Pre-KG-8 | 506 | 16.3 | Roman Catholic |
| St Ambrose School | 21.6 |
Regular elementary or secondary | Pre-KG-8 | 411 | 15.3 | Roman Catholic |
| Restoration Academy | 21.6 |
Alternative/other | Pre-KG-2 | 12 | 2.5 | Nonsectarian |
| Holy Ghost Catholic School | 21.7 |
Regular elementary or secondary | Pre-KG-8 | 131 | 10.9 | Roman Catholic |
| The Shlenker School | 21.7 |
Regular elementary or secondary | Pre-KG-5 | 178 | 8.2 | Jewish |
| First Baptist Academy | 21.8 |
Regular elementary or secondary | Pre-KG-8 | 333 | 8.6 | Baptist |
| Oak Point Montessori Academy | 21.9 |
Montessori | KG-KG | 3 | 0.8 | Nonsectarian |
| Salem Lutheran School | 21.9 |
Regular elementary or secondary | Pre-KG-8 | 377 | 12.2 | Lutheran Church - Missouri Synod |
| The Fay School | 21.9 |
Regular elementary or secondary | Pre-KG-5 | 185 | 11.2 | Nonsectarian |
| Veritas Christan Academy Of Houston | 21.9 |
Regular elementary or secondary | KG-8 | 157 | 14.8 | Christian (no specific denomination) |
| Veritas Christian Academy | 21.9 |
Regular elementary or secondary | Pre-KG-8 | 147 | 10.4 | Christian (no specific denomination) |
| Bearrington School | 21.9 |
Regular elementary or secondary | Pre-KG-5 | 42 | 8.4 | Christian (no specific denomination) |
| St Nicholas School | 22.0 |
Early childhood program/child care center | Pre-KG-KG | 8 | 8.0 | Christian (no specific denomination) |
| Pilgrim Lutheran School | 22.0 |
Regular elementary or secondary | Pre-KG-8 | 90 | 8.7 | Lutheran Church - Missouri Synod |
| Good News Christian Academy | 22.1 |
Regular elementary or secondary | Pre-KG-2 | 32 | 10.7 | Christian (no specific denomination) |
| Montessori Childrens Cottage | 22.2 |
Montessori | Pre-KG-1 | 5 | 2.5 | Nonsectarian |
| Light Christian Academy | 22.4 |
Early childhood program/child care center | Pre-KG-KG | 15 | 7.9 | Christian (no specific denomination) |
| Greenwood Christian School | 22.5 |
Special program emphasis | Pre-KG-1 | 13 | 4.3 | Christian (no specific denomination) |
| The Post Oak School | 22.7 |
Montessori | Pre-KG-8 | 195 | 10.8 | Nonsectarian |
| Faith Lutheran Day School | 22.8 |
Early childhood program/child care center | Pre-KG-KG | 9 | 9.0 | Evangelical Lutheran Church in America |
| Abercrombie Academy | 22.9 |
Regular elementary or secondary | KG-5 | 112 | 8.1 | Nonsectarian |
| Westbury Methodist Day School | 23.0 |
Early childhood program/child care center | Pre-KG-KG | 9 | 1.1 | Methodist |
| River Oaks Baptist School | 23.0 |
Regular elementary or secondary | Pre-KG-8 | 709 | 18.1 | Nonsectarian |
| Excel Adventist Academy | 23.4 |
Regular elementary or secondary | Pre-KG-8 | 51 | 10.2 | Seventh-Day Adventist |
| Bright Futures Cdc | 23.4 |
Regular elementary or secondary | Pre-KG-2 | 36 | 12.0 | Baptist |
| St Theresa Catholic School | 23.5 |
Regular elementary or secondary | Pre-KG-8 | 162 | 8.8 | Roman Catholic |
| Step By Step Christian School | 23.5 |
Regular elementary or secondary | KG-6 | 86 | 8.1 | Christian (no specific denomination) |
| St Anne Catholic School | 23.5 |
Regular elementary or secondary | Pre-KG-8 | 295 | 16.1 | Roman Catholic |
| Uos Montessori | 23.6 |
Montessori | Pre-KG-KG | 15 | 0.9 | Jewish |
| St Luke's Day School | 23.6 |
Early childhood program/child care center | Pre-KG-KG | 15 | 6.0 | Methodist |
| Trafton Academy | 23.7 |
Regular elementary or secondary | 4-8 | 270 | 11.5 | Nonsectarian |
| Mrs Wagner's School | 23.7 |
Regular elementary or secondary | Pre-KG-3 | 43 | 6.6 | Nonsectarian |
| Christian Bible Academy | 23.7 |
Early childhood program/child care center | Pre-KG-KG | 6 | 6.0 | Christian (no specific denomination) |
| Rosas School/traditional | 23.8 |
Regular elementary or secondary | KG-5 | 160 | 26.7 | Nonsectarian |
| St Mark's Episcopal School | 23.8 |
Regular elementary or secondary | Pre-KG-8 | 294 | 8.1 | Episcopal |
| The Imani School | 23.9 |
Regular elementary or secondary | KG-8 | 317 | 9.9 | Christian (no specific denomination) |
| First Steps Montessori School | 23.9 |
Montessori | Pre-KG-KG | 7 | 1.8 | Episcopal |
| Dominion Preparatory | 24.1 |
Special program emphasis | Pre-KG-4 | 16 | 2.7 | Baptist |
| Eternity Christian School | 24.2 |
Regular elementary or secondary | Pre-KG-5 | 19 | 9.5 | Assembly of God |
| The House At Pooh Corner | 24.2 |
Early childhood program/child care center | Pre-KG-Trans. KG | 33 | 11.0 | Nonsectarian |
| St Rose Of Lima Catholic School | 24.3 |
Regular elementary or secondary | Pre-KG-5 | 93 | 7.2 | Roman Catholic |
| Corpus Christi Catholic School | 24.4 |
Regular elementary or secondary | Pre-KG-8 | 173 | 11.5 | Roman Catholic |
| St Vincent De Paul School | 24.4 |
Regular elementary or secondary | Pre-KG-8 | 445 | 12.7 | Roman Catholic |
| Tree Of Life Christian Academy | 24.4 |
Early childhood program/child care center | Pre-KG-KG | 7 | 7.0 | Christian (no specific denomination) |
| St Anne Catholic School | 24.7 |
Regular elementary or secondary | Pre-KG-8 | 414 | 14.8 | Roman Catholic |
| Light Christian Academy | 24.8 |
Alternative/other | Pre-KG-1 | 33 | 12.7 | Other |
| Whispering Hope Christian Academy | 24.9 |
Regular elementary or secondary | Pre-KG-7 | 29 | 5.7 | Christian (no specific denomination) |
| The Village Montessori School | 24.9 |
Montessori | Pre-KG-KG | 5 | 1.2 | Nonsectarian |
