| Business | Phone |
| St Charles Cnty Court-Criminal 300 N 2nd St # 431, St Charles 63301 | (636) 949-7380 |
| Sheriff's Dept-Civil Process 301 N 2nd St # 128, St Charles 63301 | (636) 949-3010 |
| Sheriff's Dept-Dare Officer 301 N 2nd St, St Charles 63301 | (636) 949-3062 |
| Sheriff's Dept-Fines & Collect 300 N 2nd St # 205, St Charles 63301 | (636) 949-3089 |
| Sheriff's Dept-Jury Recording 301 N 2nd St, St Charles 63301 | (636) 949-3033 |
| Sheriff's Dept-Purchasing 301 N 2nd St, St Charles 63301 | (636) 949-3032 |