| Business | Phone |
| City Billing 102 E Parmenter St, Lamar 81052 | (719) 336-4376 |
| Lamar Building & Codes Dept 102 E Parmenter St, Lamar 81052 | (719) 336-2085 |
| Lamar City Civil Engineer 111 N 2nd St, Lamar 81052 | (719) 336-2279 |
| Lamar Electric Dept 100 N 2nd St, Lamar 81052 | (719) 336-7456 |