| Business | Phone |
| Johnston County Assoc Dist Jdg 403 W Main St, Tishomingo 73460 | (580) 371-2387 |
| Johnston County Barn Dist 1 403 W Main St, Tishomingo 73460 | (580) 371-2882 |
| Johnston County Commissioner 403 W Main St, Tishomingo 73460 | (580) 371-3058 |
| Johnston County District 2 403 W Main St, Tishomingo 73460 | (580) 443-5412 |
| Johnston County Election 404 W Main St # 104, Tishomingo 73460 | (580) 371-3670 |
| Johnston County Inca Svc 201 S Capital Ave, Tishomingo 73460 | (580) 371-2352 |
| Johnston County Osu Center 1 Murray Campus St, Tishomingo 73460 | (580) 371-9533 |
| Johnston County Water District 10501 S Refuge Rd, Tishomingo 73460 | (580) 371-2141 |