| Business | Phone |
| Winnebago Circuit Court 420 Jackson St, Oshkosh 54901 | (920) 236-4918 |
| Winnebago Cnty Court Reporter 415 Jackson St, Oshkosh 54901 | (920) 236-4806 |
| Winnebago County Circuit Court 415 Jackson St, Oshkosh 54901 | (920) 236-4808 |
| Winnebago Family Court Cmmssnr 415 Jackson St 220, Oshkosh 54901 | (920) 236-4792 |
| Winnebago Family Court Counsel 420 Jackson St, Oshkosh 54901 | (920) 236-4606 |
| Winnebago Juvenile Court 415 Jackson St, Oshkosh 54901 | (920) 236-4961 |
| Winnebago Juvenile Court Intak 220 Washington Ave, Oshkosh 54901 | (920) 236-4966 |
| Circuit Court Commissioner 415 Jackson St, Oshkosh 54901 | (920) 236-4955 |
| Court Reporter 415 Jackson St, Oshkosh 54901 | (920) 236-4824 |
| Court Reporter 420 Jackson St, Oshkosh 54901 | (920) 236-4960 |