| Greendale Baptist Academy | 7.9 |
Regular elementary or secondary | Pre-KG-11 | 23 | 11.5 | Baptist |
| The Prairie School | 8.0 |
Regular elementary or secondary | Pre-KG-12 | 680 | 11.4 | Nonsectarian |
| Atlas Preparatory Academy | 10.5 |
Regular elementary or secondary | KG-12 | 700 | 13.2 | Nonsectarian |
| Badger State Baptist School | 11.2 |
Regular elementary or secondary | KG-12 | 68 | 8.5 | Baptist |
| Grace Christian Academy | 11.9 |
Regular elementary or secondary | KG-12 | 165 | 11.8 | Christian (no specific denomination) |
| Southside Baptist School | 12.9 |
Regular elementary or secondary | KG-12 | 34 | 6.8 | Baptist |
| Dr Brenda Noach Elementary & Secondary School | 13.4 |
Regular elementary or secondary | KG-12 | 174 | 15.7 | Other |
| Ceria M Travis Academy | 13.6 |
Regular elementary or secondary | Pre-KG-12 | 359 | 32.6 | Nonsectarian |
| Union Grove Christian School | 13.7 |
Regular elementary or secondary | Pre-KG-12 | 109 | 9.9 | Baptist |
| Texas Bufkin Academy | 13.8 |
Regular elementary or secondary | KG-12 | 82 | 13.7 | Nonsectarian |
| Heritage Christian Schools | 14.3 |
Regular elementary or secondary | KG-12 | 708 | 13.1 | Christian (no specific denomination) |
| St Coletta Day School Of Milwaukee | 15.0 |
Special education | Ungraded-Ungraded | 12 | 6.0 | Roman Catholic |
| Kradwell School | 15.1 |
Special education | 5-12 | 104 | 7.4 | Nonsectarian |
| Carmelite Home For Boys - School | 15.1 |
Special education | Ungraded-Ungraded | 20 | 10.0 | Roman Catholic |
| Clara Mohammed School | 15.1 |
Regular elementary or secondary | KG-12 | 200 | 11.8 | Islamic |
| Clara Mohammed School | 15.1 |
Regular elementary or secondary | Pre-KG-12 | 193 | 16.2 | Islamic |
| Excel Academy | 15.2 |
Regular elementary or secondary | Pre-KG-12 | 221 | 18.4 | Nonsectarian |
| Hillside School At Lakeview | 15.8 |
Special education | Ungraded-Ungraded | 24 | 8.0 | Nonsectarian |
| Believers In Christ Christian | 17.1 |
Regular elementary or secondary | Pre-KG-12 | 242 | 11.3 | Christian (no specific denomination) |
| Holy Redeemer Christian Academy | 18.3 |
Regular elementary or secondary | KG-12 | 315 | 21.0 | Church of God in Christ |
| Lutheran Special School & Education Services | 18.6 |
Special education | Ungraded-Ungraded | 36 | 7.2 | Lutheran Church - Missouri Synod |
| Eastbrook Academy | 18.7 |
Regular elementary or secondary | Pre-KG-10 | 291 | 10.9 | Christian (no specific denomination) |
| Agape Center Of Academic Excellence | 18.7 |
Regular elementary or secondary | KG-12 | 196 | 14.0 | Nonsectarian |
| Agape Center Of Academic Excellence | 18.7 |
Regular elementary or secondary | Pre-KG-12 | 190 | 11.9 | Nonsectarian |
| Milwaukee Sda Junior Academy | 21.4 |
Regular elementary or secondary | KG-10 | 84 | 12.9 | Seventh-Day Adventist |
| Early View Academy Of Excellence | 21.6 |
Regular elementary or secondary | KG-12 | 400 | 25.0 | Other |
| Falls Baptist Academy | 22.4 |
Regular elementary or secondary | KG-12 | 121 | 8.3 | Baptist |
| Mukwonago Baptist Academy | 22.4 |
Regular elementary or secondary | KG-11 | 62 | 5.7 | Baptist |
| Waukesha Christian Academy | 22.8 |
Regular elementary or secondary | KG-12 | 18 | 2.1 | Baptist |
| University School-milwaukee | 23.5 |
Regular elementary or secondary | Pre-KG-12 | 968 | 9.1 | Nonsectarian |
