| Business | Phone |
| Audrain County Health Unit 605 E Promenade St, Mexico 65265 | (573) 581-1332 |
| Village Of Vandiver 2300 E Liberty St, Mexico 65265 | (573) 581-8412 |
| Mexico Animal Shelter 101 S Morris St, Mexico 65265 | (573) 581-0779 |
| Mexico Building & Grounds 211 S Morris St, Mexico 65265 | (573) 581-8310 |
| Mexico Wastewater Plant 300 N Coal St, Mexico 65265 | (573) 581-8251 |