| Business | Phone |
| Garden Acres Postal Station 1727 Main St, Longmont 80501 | (303) 776-5179 |
| Mail Drop 1600 Hover Rd # C3, Longmont 80501 | (303) 776-1133 |
| Postal Annex 1610 Pace St # 900, Longmont 80501 | (720) 494-0200 |
| Tri City Shipping & Ofc Sltns 11078 Cimarron St, Longmont 80501 | (303) 485-1900 |