USPS - Postal Service in Mount Sinai - Locations & Hours

• All Stores » 
• USPS - Postal Service Near Me » 
• New York » 
• USPS - Postal Service in Mount Sinai

Name	Address	Phone
USPS - Post Office - Mount Sinai	457 Route 25a	631-928-0394
USPS Mail Collection/Drop Box - 457 Route 25a	457 Route 25a
USPS Mail Collection/Drop Box - 457 Rt 25a	457 Rt 25a
USPS Mail Collection/Drop Box - 5507-1 Nesconset Hwy.	5507-1 Nesconset Hwy.