| Business | Phone |
| Champlain Park Waste Water 361 Route 314, Plattsburgh 12901 | (518) 561-4388 |
| Peru Sewer Plant Valcour, Plattsburgh 12901 | (518) 561-4988 |
| Plattsburgh Accounting 151 Banker Rd, Plattsburgh 12901 | (518) 563-8101 |
| Plattsburgh Accounting Dept 151 Banker Rd, Plattsburgh 12901 | (518) 562-6825 |
| Plattsburgh Assessing Dept 151 Banker Rd, Plattsburgh 12901 | (518) 562-6820 |
| Plattsburgh Building Dept Plattsburgh 12901 | (518) 562-6840 |
| Plattsburgh City Chamberlain 6 Miller St, Plattsburgh 12901 | (518) 563-7704 |
| Plattsburgh Codes Adm Plattsburgh 12901 | (518) 563-8103 |
| Plattsburgh Community Outreach 1403 Military Tpke, Plattsburgh 12901 | (518) 563-2836 |
| Plattsburgh Div Of Assessment 41 City Hall Pl, Plattsburgh 12901 | (518) 563-7708 |
| Plattsburgh Dog Control 151 Banker Rd, Plattsburgh 12901 | (518) 563-8100 |
| Plattsburgh Dog Control Officer Plattsburgh 12901 | (518) 562-6831 |
| Plattsburgh Highway Supt 151 Banker Rd, Plattsburgh 12901 | (518) 562-6880 |
| Plattsburgh Human Resources 41 City Hall Pl, Plattsburgh 12901 | (518) 561-0883 |
| Plattsburgh Municipal Lighting 6 Miller St, Plattsburgh 12901 | (518) 563-2200 |
| Plattsburgh Planning 151 Banker Rd, Plattsburgh 12901 | (518) 563-8103 |
| Plattsburgh Planning Dept 41 City Hall Pl, Plattsburgh 12901 | (518) 563-7730 |
| Plattsburgh Planning Office 151 Banker Rd, Plattsburgh 12901 | (518) 562-6850 |
| Plattsburgh Town Historian Plattsburgh 12901 | (518) 562-6887 |
| Plattsburgh Town Office 151 Banker Rd, Plattsburgh 12901 | (518) 562-6800 |
| Plattsburgh Town Supervisor 151 Banker Rd, Plattsburgh 12901 | (518) 562-6810 |
| Plattsburgh Water Filtration 549 Route 3, Plattsburgh 12901 | (518) 563-1188 |