| Business | Phone |
| Harding County Fire District 2 78 Heimann Rd, Clayton 88415 | (505) 633-2026 |
| Union County Administrative 200 Court St, Clayton 88415 | (505) 374-8896 |
| Union County Extension Office 100 Court St, Clayton 88415 | (505) 374-9361 |
| Union County Highway Barn 25 Lake Hwy, Clayton 88415 | (505) 374-9590 |
| Union County Treasurer's Ofc 200 Court St, Clayton 88415 | (505) 374-2331 |