| Business | Phone |
| County Engineer 500 S Prairie St, Emporia 66801 | (620) 340-8220 |
| Extension Office 618 Commercial St, Emporia 66801 | (620) 342-4950 |
| Lyon County Appraiser 430 Commercial St, Emporia 66801 | (620) 341-3232 |
| Lyon County Commission 430 Commercial St, Emporia 66801 | (620) 341-3270 |
| Lyon County Courthouse 430 Commercial St, Emporia 66801 | (620) 342-4950 |
| Lyon County Elections Div 430 Commercial St, Emporia 66801 | (620) 341-3244 |
| Lyon County Extension Office 618 Commercial St, Emporia 66801 | (620) 341-3220 |
| Lyon County Fire District #4 120 E 5th Ave, Emporia 66801 | (620) 343-4230 |
| Lyon County Motor Vehicle Dept 430 Commercial St, Emporia 66801 | (620) 341-3257 |
| Lyon County Personnel 430 Commercial St, Emporia 66801 | (620) 341-3252 |
| Lyon County Register Of Deeds 430 Commercial St, Emporia 66801 | (620) 341-3240 |