USPS Islip, NY

About USPS

United States Postal Service (USPS) is an independent agency of the United States federal government, responsible for providing postal services within the country. It is the only organization in the US that is authorized to deliver mail to every address, including PO boxes and military addresses. With a network of more than 31,000 retail locations and delivery points, USPS serves millions of customers every day. The company offers a range of services, including first-class and priority mail, international shipping, flat-rate boxes, and more. Known for its reliable and efficient service, USPS is a trusted partner for individuals and businesses across the country.

1. USPS Post Office Islip

194 ft
309 Main St, Unit 3 (631) 581-7931
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed

2. USPS Post Office East Islip

1.3 mi
11 Greenwood Ave, East Islip NY 11730 (631) 581-7807
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed

3. USPS Post Office Islip Terrace

1.3 mi
136 Carleton Ave, Islip Terrace NY 11752 (631) 581-7894
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed

4. USPS Post Office Penataquit

1.9 mi
10 Bay Shore Ave, Bay Shore NY 11706 (631) 969-3506
Monday-Friday: 9:00 AM-4:30 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed

5. USPS Post Office Federal Court House

2.3 mi
101 Federal Plz, Central Islip NY 11722 (631) 787-6000
Monday-Friday: 9:30 AM-2:30 PM, Saturday-Sunday: Closed

6. USPS Post Office Bay Shore

2.7 mi
1314 5th Ave, Bay Shore NY 11706 (631) 969-3504
Monday-Friday: 9:00 AM-5:30 PM, Saturday: 9:00 AM-3:30 PM, Sunday: Closed

7. USPS Post Office Great River

3.0 mi
62 River Rd, Great River NY 11739 (631) 581-7680
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed

8. USPS Post Office Brentwood

3.9 mi
25 2nd Ave, Brentwood NY 11717 (631) 273-0947
Monday-Friday: 8:30 AM-5:00 PM, Saturday: 9:00 AM-2:00 PM, Sunday: Closed

9. USPS Post Office Central Islip

4.4 mi
110 E Suffolk Ave, Central Islip NY 11722 (631) 234-0547
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed

10. USPS Post Office West Islip

4.8 mi
480 Union Blvd, West Islip NY 11795 (631) 669-5157
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-3:30 PM, Sunday: Closed

11. USPS Post Office Saltaire

6.3 mi
1 Pomander Walk, Saltaire NY 11706 (631) 665-2535
Monday-Saturday: 10:30 AM-2:30 PM, Sunday: Closed

12. USPS Post Office Patchogue

10.7 mi
170 E Main St, Patchogue NY 11772 (631) 475-0588
Monday-Friday: 9:00 AM-5:00 PM, Saturday: 9:00 AM-1:00 PM, Sunday: Closed
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