| Business | Phone |
| Legal Aid 200 Mcnab, Walkerton N0G 2V0 | (519) 881-0407 |
| Ontario Civil Court 207 Cayley, Walkerton N0G 2V0 | (519) 881-0211 |
| Ontario Criminal Courts 207 Cayley, Walkerton N0G 2V0 | (519) 881-2333 |
| Ontario Crown Attorney 215 Cayley, Walkerton N0G 2V0 | (519) 881-0432 |
| Ontario Driver & Vehicle 14 Victoria N, Walkerton N0G 2V0 | (519) 881-1017 |
| Ontario Driver Examination 200 Mcnabb St, Walkerton N0G 2V0 | (519) 881-3400 |
| Ontario Land Registry Office 203 Cayley, Walkerton N0G 2V0 | (519) 881-2259 |
| Ontario Walkerton Jail 209 Cayley, Walkerton N0G 2V0 | (519) 881-3442 |