| Business | Phone |
| Audrain County Bailiff 101 N Jefferson St, Mexico 65265 | (573) 473-5890 |
| Audrain County Behavioral Spec 508 E Liberty St, Mexico 65265 | (573) 581-6624 |
| Audrain County Collector 101 N Jefferson St # 103, Mexico 65265 | (573) 473-5824 |
| Audrain County Commission 101 N Jefferson St, Mexico 65265 | (573) 473-5822 |
| Audrain County Dev Training 807 W Breckenridge St, Mexico 65265 | (573) 581-8454 |
| Audrain County Extension Ctr 101 N Jefferson St # 304, Mexico 65265 | (573) 581-3231 |
| Audrain County Probate Div 101 N Jefferson St # 205, Mexico 65265 | (573) 473-5854 |
| Audrain County Public Adm 101 N Jefferson St, Mexico 65265 | (573) 473-5891 |
| Audrain County Road Shed Audrain Road 306, Mexico 65265 | (573) 473-5895 |
| Audrain County Small Claims Ct 101 N Jefferson St # 205, Mexico 65265 | (573) 473-5850 |
| Audrain County Voter Rgstrtn 101 N Jefferson St, Mexico 65265 | (573) 473-5820 |
| Audrain Recorder Of Deeds 101 N Jefferson St # 105, Mexico 65265 | (573) 473-5830 |
| Special Road District 335 E Orange St, Mexico 65265 | (573) 581-0600 |