| Union Grove Christian School | 7.6 |
Regular elementary or secondary | Pre-KG-12 | 109 | 9.9 | Baptist |
| Mukwonago Baptist Academy | 11.3 |
Regular elementary or secondary | KG-11 | 62 | 5.7 | Baptist |
| Parkway Christian Academy | 15.8 |
Regular elementary or secondary | Pre-KG-12 | 154 | 8.6 | Christian (no specific denomination) |
| Greendale Baptist Academy | 17.1 |
Regular elementary or secondary | Pre-KG-11 | 23 | 11.5 | Baptist |
| Grace Christian Academy | 19.1 |
Regular elementary or secondary | KG-12 | 165 | 11.8 | Christian (no specific denomination) |
| Waukesha Christian Academy | 19.1 |
Regular elementary or secondary | KG-12 | 18 | 2.1 | Baptist |
| The Prairie School | 20.2 |
Regular elementary or secondary | Pre-KG-12 | 680 | 11.4 | Nonsectarian |
| Heritage Christian Schools | 20.3 |
Regular elementary or secondary | KG-12 | 708 | 13.1 | Christian (no specific denomination) |
| Atlas Preparatory Academy | 20.6 |
Regular elementary or secondary | KG-12 | 700 | 13.2 | Nonsectarian |
| Southside Baptist School | 20.8 |
Regular elementary or secondary | KG-12 | 34 | 6.8 | Baptist |
| Badger State Baptist School | 22.2 |
Regular elementary or secondary | KG-12 | 68 | 8.5 | Baptist |
| Carmelite Home For Boys - School | 22.7 |
Special education | Ungraded-Ungraded | 20 | 10.0 | Roman Catholic |
| Kradwell School | 22.8 |
Special education | 5-12 | 104 | 7.4 | Nonsectarian |
| Faith Christian School | 23.4 |
Regular elementary or secondary | Pre-KG-12 | 192 | 9.0 | Christian (no specific denomination) |
| Texas Bufkin Academy | 23.5 |
Regular elementary or secondary | KG-12 | 82 | 13.7 | Nonsectarian |
| Ceria M Travis Academy | 23.5 |
Regular elementary or secondary | Pre-KG-12 | 359 | 32.6 | Nonsectarian |
| St Coletta Day School Of Milwaukee | 23.7 |
Special education | Ungraded-Ungraded | 12 | 6.0 | Roman Catholic |
| Lakewood School | 23.8 |
Special education | Ungraded-Ungraded | 50 | 9.3 | Nonsectarian |
| Abundant Life Christian Academy | 23.9 |
Regular elementary or secondary | Pre-KG-12 | 31 | 6.2 | Other |
| Excel Academy | 24.7 |
Regular elementary or secondary | Pre-KG-12 | 221 | 18.4 | Nonsectarian |
| Dr Brenda Noach Elementary & Secondary School | 25.0 |
Regular elementary or secondary | KG-12 | 174 | 15.7 | Other |
