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GREAT RIVER

Post Office™
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62 RIVER RD
GREAT RIVER, NY 11739-9700

Closed

Saturday

9:00 am - 1:00 pm

Sunday

Closed

Monday

9:00 am - 5:00 pm

Tuesday

9:00 am - 5:00 pm

Wednesday

9:00 am - 5:00 pm

Thursday

9:00 am - 5:00 pm

Friday

9:00 am - 5:00 pm

See More Hours

1-800-ASK-USPS® | 800-275-8777
Phone | 631-581-7680
TTY | 877-889-2457

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Services at the Great River Post Office

Service hours may vary. For all location services, see all hours.

  • Domestic Money Orders
  • Inquiry Money Orders
  • There are no passport services available at this location.
  • Duck Stamps
  • General Delivery
  • Retail Label Broker®
  • Priority Mail International®
  • PO Box™ Online
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • Pickup Notice Left Mail
  • Business Reply Mail® Account Balance
  • Business Reply Mail® New Permit
  • Bulk Mail Acceptance
  • Bulk Mail Account Balance
  • Bulk Mail New Permit
  • Burial Flags
  • Call Referral
  • In-Person Proofing Basic

*These services require an appointment or invitation.

Bulk Mail Acceptance

Mon-Fri 9:00 am-4:00 pm

Sat Closed

Sun Closed

Retail

Mon-Fri 9:00 am-5:00 pm

Sat 9:00 am-1:00 pm

Sun Closed

Call Referral

Mon-Fri 9:00 am-5:00 pm

Sat 9:00 am-1:00 pm

Sun Closed

Last Collection

Mon-Fri 4:30 pm

Sat 12:45 pm

Sun Closed

Pickup Accountable Mail

Mon-Fri 9:00 am-5:00 pm

Sat 9:00 am-1:00 pm

Sun Closed

Pickup Hold Mail

Mon-Fri 9:00 am-5:00 pm

Sat 9:00 am-1:00 pm

Sun Closed

Pickup Notice Left Mail

Mon-Fri 9:00 am-5:00 pm

Sat 9:00 am-1:00 pm

Sun Closed

PO Box™ Access

Mon-Fri 6:00 am-6:00 pm

Sat 6:00 am-1:00 pm

Sun Closed

PO Box™ Delivery

Mon-Fri 11:00 am

Sat 11:00 am

Sun Closed

RONKONKOMA

200 HAWKINS AVE

RONKONKOMA, NY 11779-4286

NORTH BABYLON

1196 DEER PARK AVE

NORTH BABYLON, NY 11703-3111

DEER PARK

375 CARLLS PATH

DEER PARK, NY 11729-4414

EAST ISLIP

11 GREENWOOD AVE

EAST ISLIP, NY 11730-2145

OAKDALE

927 MONTAUK HWY

OAKDALE, NY 11769-1718

ISLIP TERRACE

136 CARLETON AVE

ISLIP TERRACE, NY 11752-2641

At This Location

Lot Parking Available

For facility accessibility, please call the Post Office.
1-800-ASK-USPS® (800-275-8777)

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