| Electric & Gas | Ameren UE | 1300 West Liberty | 800-552-7583 |
| Consolidated Electric Cooperative | Highway 54 East | 573-581-3630 |
| Water | Missouri American Water Company | 506 South Western | 866-430-0820 |
| Sewer & Trash | City of Mexico | 300 North Coal | 573-581-2100 |
| Telephone | AT&T | no local office | 800-ATT-2020 |
| Newspaper | The Mexico Ledger | 300 North Washington | 573-581-1111 |
| St. Louis Post-Dispatch (delivery) | | 573-581-0986 |
| Cable Television | U.S. Cable | 428 North Kentucky | 573-581-2404 |
| Vehicle & Driver’s License | Audrain County License Bureau | 201 North Abat | 573-581-2665 |
| United States Post Office | | 420 West Jackson | 573-581-5967 |
| Radio Stations | KXEO 1340 AM | Highway 54 East | 573-581-2340 |
| KWWR 95.7 FM | Highway 54 East | 573-581-5500 |
| Internet Access Providers | ConnectOne | | 573-581-7110 |
| Innovative Technology Services | | 573-581-6730 |
| Socket | | 573-582-0500 |
| Kingdom Telephone Internet Service | | 800-487-4811 |
| Click here to print a list of major employers in Mexico |
