| Business | Phone |
| Knox County 911 Svc Dept 135 N 8th St, Vincennes 47591 | (812) 882-1502 |
| Knox County Alcohol Drug Rfrl 620 Busseron St, Vincennes 47591 | (812) 882-1530 |
| Knox County Area Planning 101 N 7th St # 3, Vincennes 47591 | (812) 885-2544 |
| Knox County Assn For Retarded 2525 N 6th St, Vincennes 47591 | (812) 895-0059 |
| Knox County Commissioner's Ofc 111 N 7th St, Vincennes 47591 | (812) 885-2514 |
| Knox County Cooperative Ext 2758 E Pine Hill Dr # D, Vincennes 47591 | (812) 882-3509 |
| Knox County Courthouse 111 N 7th St, Vincennes 47591 | (812) 886-9414 |
| Knox County Courthouse Mntnc 620 Busseron St, Vincennes 47591 | (812) 885-2555 |
| Knox County Offices 1050 Washington Ave, Vincennes 47591 | (812) 882-1042 |
| Knox County Recorder 101 N 7th St, Vincennes 47591 | (812) 885-2508 |
| Knox County Surveyor 111 N 7th St # 4, Vincennes 47591 | (812) 885-2535 |
| Knox County Veteran's Svc Ofcr 111 N 7th St, Vincennes 47591 | (812) 885-2539 |
| Knox County Voter Registration 101 N 7th St # 2, Vincennes 47591 | (812) 895-4928 |
| Purdue Extension Southwest 4367 N Purdue Rd, Vincennes 47591 | (812) 886-9582 |
| Wabash Valley Regl Community 147 N 8th St, Vincennes 47591 | (812) 886-4094 |