| Light of Christ Catholic Schools | Bismarck | PreK-12 | 1,314 | 14.5 | Roman Catholic |
| Jpii Catholic Schools | Fargo | PreK-12 | 1,137 | 14.9 | Roman Catholic |
| Oak Grove Lutheran School | Fargo | K-12 | 655 | 14.4 | Evangelical Lutheran Church in America |
| Trinity Catholic School | Dickinson | PreK-12 | 611 | 8.7 | Roman Catholic |
| Shiloh Christian School | Bismarck | PreK-12 | 538 | 9.9 | Christian (nondenominational) |
| Bishop Ryan Catholic School | Minot | PreK-12 | 376 | 10.5 | Roman Catholic |
| Oak Grove Lutheran Elementary School | Fargo | K-5 | 318 | 13.8 | Evangelical Lutheran Church in America |
| Our Redeemers Christian School | Minot | PreK-12 | 290 | 16.8 | Lutheran |
| Trinity Elementary | West Fargo | PreK-5 | 266 | 13.3 | Roman Catholic |
| Williston Trinity Christian School | Williston | PreK-12 | 255 | 8.6 | Christian (nondenominational) |
| St. Mary's Grade School | Bismarck | K-5 | 226 | 16.1 | Roman Catholic |
| Trinity Elementary West | Dickinson | K-4 | 197 | 12.7 | Roman Catholic |
| St. Anne School | Bismarck | PreK-5 | 195 | 17.7 | Roman Catholic |
| St. John's Academy | Jamestown | PreK-8 | 183 | 11.6 | Roman Catholic |
| St. Joseph School and St. Mary Academy | Devils Lake | PreK-8 | 164 | 14.3 | Roman Catholic |
| St. Joseph's School | Williston | K-6 | 160 | 11.8 | Roman Catholic |
| Capstone Classical Academy | Fargo | PreK-8 | 154 | 11.8 | Christian (nondenominational) |
| Hope Christian Academy | Dickinson | PreK-12 | 153 | 11.9 | Christian (nondenominational) |
| St. Michael's School | Grand Forks | PreK-5 | 139 | 11 | Roman Catholic |
| Christ the King Catholic Montessori School | Mandan | PreK-6 | 133 | 11.8 | Roman Catholic |
| St. Johns School | Wahpeton | PreK-6 | 104 | 12.5 | Roman Catholic |
| Holy Family St. Marys School | Grand Forks | PreK-5 | 96 | 12 | Roman Catholic |
| Trinity Elementary East | Dickinson | K-4 | 91 | 12.1 | Roman Catholic |
| Dakota Memorial School | Minot | 4-12 | 87 | 2.4 | Nonsectarian |
| Grace Lutheran School | Fargo | PreK-8 | 83 | not reported | Lutheran Church (Missouri Synod) |
| Victory Christian School | Jamestown | PreK-8 | 77 | 9.3 | Christian (nondenominational) |
| Johnson Corners Christian Academy | Watford City | K-12 | 77 | 6.4 | Christian (nondenominational) |
| St. Alphonsus School | Langdon | PreK-8 | 74 | 8.1 | Roman Catholic |
| Martin Luther School | Bismarck | PreK-7 | 68 | 6 | Lutheran Church (Missouri Synod) |
| Holy Spirit Elementary School | Fargo | K-5 | 67 | 11.2 | Roman Catholic |
| Anne Carlsen Center | Jamestown | PreK-12 | 58 | 3.9 | Nonsectarian |
| St. Catherine Elementary School | Valley City | K-6 | 54 | 8.6 | Roman Catholic |
| Forest River School | Fordville | K-10 | 53 | 12 | Brethren |
| The Innovation School | Bismarck | PreK-8 | 30 | 8.3 | Nonsectarian |
| St. Ann's Catholic School | Belcourt | PreK-6 | 24 | 3.5 | Roman Catholic |
| Children's Montessori Center | Fargo | PreK-2 | 23 | 11.5 | Nonsectarian |
| St. Bernard Mission School | Fort Yates | K-8 | 20 | 3.3 | Roman Catholic |
| Invitation Hill Adventist School | Dickinson | K-8 | 18 | 9 | Seventh-Day Adventist |
| Nd School for the Deaf | Devils Lake | PreK-8 | 15 | 3 | Nonsectarian |
| Brentwood Adventist Christian School | Bismarck | K-8 | 11 | 5.5 | Seventh-Day Adventist |