| Business | Phone |
| District Court/ Johnson County 301 Porter Industrial Rd, Clarksville 72830 | (479) 754-8533 |
| Johnson Cooperative Extension 129 W Sevier St, Clarksville 72830 | (479) 754-2240 |
| Johnson County Boys Club Clarksville 72830 | (479) 754-3303 |
| Johnson County Circuit Clerk 215 Main St, Clarksville 72830 | (479) 754-2977 |
| Johnson County Fire 215 W Main St, Clarksville 72830 | (479) 754-7777 |
| Johnson County Juvenile Office 215 W Main St, Clarksville 72830 | (479) 754-8588 |
| Johnson County Landfill County Rd 3311, Clarksville 72830 | (479) 754-3007 |
| Johnson County Public Housing 115 N Fulton St, Clarksville 72830 | (479) 754-7565 |
| Johnson County Real Est 205 W Main St, Clarksville 72830 | (479) 754-8839 |
| Johnson County Surveyor's Office Clarksville 72830 | (479) 754-4981 |
| Johnson County Veterans Ofc 211 W Main St, Clarksville 72830 | (479) 754-2560 |
| Johnson County Warehouse 1697 Highway 21 N, Clarksville 72830 | (479) 754-2401 |
| Johnson Fair Grounds Assn Inc 1315 W Sevier St, Clarksville 72830 | (479) 754-8281 |