| Abundant Life Christian Academy | 7.8 |
Regular elementary or secondary | Pre-KG-12 | 31 | 6.2 | Other |
| University Lake School | 8.0 |
Regular elementary or secondary | Pre-KG-12 | 315 | 7.6 | Nonsectarian |
| Lakewood School | 8.1 |
Special education | Ungraded-Ungraded | 50 | 9.3 | Nonsectarian |
| Oconomowoc Developmental Training Center | 9.4 |
Special education | Ungraded-Ungraded | 128 | 8.0 | Nonsectarian |
| Mukwonago Baptist Academy | 10.8 |
Regular elementary or secondary | KG-11 | 62 | 5.7 | Baptist |
| Heritage Christian Schools | 12.3 |
Regular elementary or secondary | KG-12 | 708 | 13.1 | Christian (no specific denomination) |
| Calvary Baptist School | 13.8 |
Regular elementary or secondary | Pre-KG-12 | 248 | 14.7 | Baptist |
| Grace Christian Academy | 13.8 |
Regular elementary or secondary | KG-12 | 165 | 11.8 | Christian (no specific denomination) |
| Carmelite Home For Boys - School | 14.5 |
Special education | Ungraded-Ungraded | 20 | 10.0 | Roman Catholic |
| Lutheran Special School & Education Services | 14.5 |
Special education | Ungraded-Ungraded | 36 | 7.2 | Lutheran Church - Missouri Synod |
| Kradwell School | 14.6 |
Special education | 5-12 | 104 | 7.4 | Nonsectarian |
| Southside Baptist School | 14.6 |
Regular elementary or secondary | KG-12 | 34 | 6.8 | Baptist |
| Falls Baptist Academy | 15.0 |
Regular elementary or secondary | KG-12 | 121 | 8.3 | Baptist |
| Milwaukee Sda Junior Academy | 15.3 |
Regular elementary or secondary | KG-10 | 84 | 12.9 | Seventh-Day Adventist |
| St Coletta Day School Of Milwaukee | 16.0 |
Special education | Ungraded-Ungraded | 12 | 6.0 | Roman Catholic |
| Greendale Baptist Academy | 16.3 |
Regular elementary or secondary | Pre-KG-11 | 23 | 11.5 | Baptist |
| Atlas Preparatory Academy | 17.0 |
Regular elementary or secondary | KG-12 | 700 | 13.2 | Nonsectarian |
| Texas Bufkin Academy | 17.1 |
Regular elementary or secondary | KG-12 | 82 | 13.7 | Nonsectarian |
| Excel Academy | 17.3 |
Regular elementary or secondary | Pre-KG-12 | 221 | 18.4 | Nonsectarian |
| Ceria M Travis Academy | 17.5 |
Regular elementary or secondary | Pre-KG-12 | 359 | 32.6 | Nonsectarian |
| St Augustine School Inc | 17.6 |
Regular elementary or secondary | KG-12 | 65 | 8.1 | Roman Catholic |
| Early View Academy Of Excellence | 18.1 |
Regular elementary or secondary | KG-12 | 400 | 25.0 | Other |
| Holy Redeemer Christian Academy | 18.4 |
Regular elementary or secondary | KG-12 | 315 | 21.0 | Church of God in Christ |
| Badger State Baptist School | 18.4 |
Regular elementary or secondary | KG-12 | 68 | 8.5 | Baptist |
| Believers In Christ Christian | 18.6 |
Regular elementary or secondary | Pre-KG-12 | 242 | 11.3 | Christian (no specific denomination) |
| Agape Center Of Academic Excellence | 18.6 |
Regular elementary or secondary | Pre-KG-12 | 190 | 11.9 | Nonsectarian |
| Agape Center Of Academic Excellence | 18.6 |
Regular elementary or secondary | KG-12 | 196 | 14.0 | Nonsectarian |
| Hillside School At Lakeview | 19.1 |
Special education | Ungraded-Ungraded | 24 | 8.0 | Nonsectarian |
| Clara Mohammed School | 19.5 |
Regular elementary or secondary | Pre-KG-12 | 193 | 16.2 | Islamic |
| Clara Mohammed School | 19.5 |
Regular elementary or secondary | KG-12 | 200 | 11.8 | Islamic |
| Eastbrook Academy | 19.7 |
Regular elementary or secondary | Pre-KG-10 | 291 | 10.9 | Christian (no specific denomination) |
| Dr Brenda Noach Elementary & Secondary School | 20.0 |
Regular elementary or secondary | KG-12 | 174 | 15.7 | Other |
| University School-milwaukee | 21.9 |
Regular elementary or secondary | Pre-KG-12 | 968 | 9.1 | Nonsectarian |
| Parkway Christian Academy | 22.8 |
Regular elementary or secondary | Pre-KG-12 | 154 | 8.6 | Christian (no specific denomination) |
