United States Postal Service
Main:
(800) 275-8777
Alt: (631) 581-7807
Fax: (631) 224-9064
Alt: (631) 581-7807
Fax: (631) 224-9064
11 Greenwood Ave, East Islip, New York, 11730
Business hours
| Monday | 9:00am to 5:00pm |
| Tuesday | 9:00am to 5:00pm |
| Wednesday | 9:00am to 5:00pm |
| Thursday | 9:00am to 5:00pm |
| Friday | 9:00am to 5:00pm |
| Saturday | 9:00am to 1:00pm |
| Sunday | - |
About us
Visit your local Post Office™ at 11 Greenwood Ave to find everything you need to send mail and ship packages. Explore our other products and services like money orders, Post Office™ boxes, passports, gift cards, and more
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