| Regents School of Austin | Austin | K-12 | 1,073 | 9.7 | Christian (nondenominational) |
| The Covenant School | Dallas | K-12 | 717 | 8.4 | Christian (nondenominational) |
| The Covenant School of Dallas | Dallas | K-12 | 714 | 8.4 | Christian (nondenominational) |
| Coram Deo Academy | Dallas | PreK-12 | 689 | 26.5 | Christian (nondenominational) |
| Coram Deo Academy of Collin County | Plano | PreK-12 | 569 | 17.9 | Christian (nondenominational) |
| Covenant Christian Academy | Colleyville | PreK-12 | 548 | 7.6 | Christian (nondenominational) |
| Providence Preparatory School | Belton | PreK-12 | 408 | 10.2 | Christian (nondenominational) |
| Providence Classical School | Spring | PreK-12 | 374 | 7.6 | Christian (nondenominational) |
| Grace Academy of Georgetown | Georgetown | K-12 | 353 | 11.9 | Christian (nondenominational) |
| Christian Heritage Classical School | Longview | PreK-12 | 300 | 7.3 | Christian (nondenominational) |
| Austin Classical School | Austin | PreK-11 | 293 | 16.7 | Christian (nondenominational) |
| Annapolis Christian Academy | Corpus Christi | PreK-12 | 291 | 8.5 | Christian (nondenominational) |
| Kingdom Preparatory Academy | Lubbock | PreK-12 | 272 | 209.2 | Christian (nondenominational) |
| Classical School of Dallas | Dallas | PreK-9 | 261 | 9.3 | Christian (nondenominational) |
| Berean Christian Academy | Katy | K-11 | 219 | 9 | Christian (nondenominational) |
| Covenant Academy | Cypress | PreK-12 | 173 | 6 | Christian (nondenominational) |
| Regents Academy | Nacogdoches | PreK-12 | 167 | 7.6 | Christian (nondenominational) |
| Lakewood Presbyterian School | Dallas | K-12 | 150 | 12.5 | Presbyterian |
| Open Door Christian School | Graham | PreK-9 | 145 | 8.3 | Christian (nondenominational) |
| Harbor Christian Academy | Houston | PreK-7 | 122 | 6.3 | Christian (nondenominational) |
| The Cambridge School of Dallas | Dallas | 5-12 | 120 | 6.9 | Christian (nondenominational) |
| Abilene Classical Academy | Abilene | PreK-8 | 115 | 7.4 | Christian (nondenominational) |
| The Oaks Tutorials | Granbury | K-12 | 108 | 6.2 | Presbyterian |
| Runnels Academy | Big Spring | PreK-12 | 100 | 5.7 | Christian (nondenominational) |
| Uvalde Classical Academy | Uvalde | PreK-12 | 91 | 5.6 | Christian (nondenominational) |
| Magnolia Classical Academy | Magnolia | PreK-12 | 71 | 8.8 | Christian (nondenominational) |
| Messiah Lutheran Classical Academy | Keller | PreK-8 | 63 | 6.1 | Lutheran Church (Missouri Synod) |
| Citadel Christian School | Brenham | PreK-10 | 48 | 5.3 | Christian (nondenominational) |
| The Saint Timothy School | Dallas | PreK-12 | 46 | 5.1 | Episcopal |
| Legacy Classical Christian Academy | Haslet | PreK-12 | 45 | 15 | Christian (nondenominational) |
| River Hills Christian Academy | Corpus Christi | PreK-8 | 41 | 4.4 | Christian (nondenominational) |
| Privested Academy | Plano | K-12 | 32 | 7.4 | Christian (nondenominational) |
| In the Presence of God Coram Deo Classical Academy | Brownsville | 2-12 | 20 | 4.9 | Christian (nondenominational) |