| Hennessy Catholic School | 4.7 |
Regular elementary or secondary | Pre-KG-6 | 69 | 8.3 | Roman Catholic |
| St Paul School | 6.1 |
Regular elementary or secondary | Pre-KG-6 | 48 | 9.8 | Roman Catholic |
| Hennessy Catholic School Petersburg Center | 6.7 |
Regular elementary or secondary | Pre-KG-6 | 70 | 10.0 | Roman Catholic |
| Seton Catholic School | 6.8 |
Regular elementary or secondary | Pre-KG-8 | 325 | 13.2 | Roman Catholic |
| Seton Catholic School | 6.8 |
Regular elementary or secondary | Pre-KG-8 | 325 | 12.2 | Roman Catholic |
| Seton Catholic School | 10.3 |
Regular elementary or secondary | Pre-KG-8 | 325 | 17.1 | Roman Catholic |
| Lasalle Catholic School | 10.4 |
Regular elementary or secondary | Pre-KG-8 | 140 | 12.8 | Roman Catholic |
| Aquin Catholic Elementary School | 13.9 |
Regular elementary or secondary | KG-8 | 243 | 13.1 | Roman Catholic |
| St Mary Elementary School | 17.0 |
Regular elementary or secondary | KG-6 | 185 | 13.6 | Roman Catholic |
| Sacred Heart School | 17.1 |
Regular elementary or secondary | Pre-KG-6 | 97 | 12.9 | Roman Catholic |
| Resurrection School | 20.0 |
Regular elementary or secondary | Pre-KG-5 | 288 | 18.5 | Roman Catholic |
| St Mary Elementary School | 20.7 |
Regular elementary or secondary | KG-8 | 120 | 12.8 | Roman Catholic |
| Dubuque Lutheran School | 20.7 |
Regular elementary or secondary | KG-5 | 36 | 9.2 | Lutheran Church - Missouri Synod |
| Dubuque Montessori School | 21.6 |
Early childhood program/child care center | Pre-KG-Trans. KG | 4 | 6.7 | Nonsectarian |
| Mazzuchelli Catholic Middle School | 21.8 |
Regular elementary or secondary | 6-8 | 440 | 15.8 | Roman Catholic |
| St Anthony School | 21.9 |
Regular elementary or secondary | Pre-KG-5 | 181 | 12.2 | Roman Catholic |
| Holy Ghost Elementary School | 22.9 |
Regular elementary or secondary | KG-5 | 112 | 17.0 | Roman Catholic |
| St Columbkille School | 23.0 |
Regular elementary or secondary | KG-5 | 288 | 16.9 | Roman Catholic |
