Post Office
- Hauppauge Post Office 960 Wheeler Rd Hauppauge, NY
- Central Islip Post Office 110 E Suffolk Ave Central Islip, NY
- Hauppauge Industrial Park Post Office 150 Oser Ave Hauppauge, NY
- Smithtown Post Office 25 Route 111 Smithtown, NY
- Nesconset Post Office 226 Smithtown Blvd Nesconset, NY