Commack Post Office

150 Veterans Memorial Hwy Commack, NY 11725
Phone: 631-543-3647

Parking: Parking Lot Available
Post Office Lobby Hours
Monday 12:01am - 11:59pm
Tuesday 12:01am - 11:59pm
Wednesday 12:01am - 11:59pm
Thursday 12:01am - 11:59pm
Friday 12:01am - 11:59pm
Saturday 12:01am - 11:59pm
Sunday 12:01am - 11:59pm


Commack Post Office is a United States Postal Service (USPS) facility in Commack, NY. This post office offers a full array of services, including package delivery and first class mail.


Self-Service Kiosk
Business Reply Mail® Account Balance
Business Reply Mail New Permit
Bulk Mail New Permit
Burial Flags
Bulk Mail Acceptance
Bulk Mail Account Balance
Carrier Services
Duck Stamps
Greeting Card Services
Global Express Guranteed®
Money Orders (Domestic)
Money Orders (Inquiry)
Money Orders (International)
Pickup Hold Mail
Pickup Accountable Mail
Pickup Notice Left Mail
PO Boxes
Priority Mail International®

Passport Services at Commack Post Office

Commack Post Office can accept first-time passport applications, and can facilitate passport renewals. You can schedule an appointment at this post office by calling 631-543-3647 or schedule an appointment online using the Online Scheduling Tool. When you go to your appointment to apply for a new passport, you will need to bring the following items with you to the post office:

  1. A completed U.S. Passport Application form (DS-11)
  2. Proof of U.S. Citizenship. You will need to present original physical documentation proving your citizenship status (for example, your birth certificate). In addition, you will need to bring a photocopy of the document.
  3. Proof of Identity. You will need to show, for example, a driver's license. In addition, you will need to bring a photocopy of this identification document.
  4. A recent color photograph (a "passport photo") which must show the front of your face, and be 2x2 inches in size. Commack Post Office does have passport photo services, and, for a fee, your photo can be taken there.

See this resource from the U.S. Department of State for full instructions on how to apply in person, including the full list of documents that can be used as proof of U.S. citizenship, and the full list of acceptable identification documents.

Nearby Post Offices

Hauppauge Industrial Park Post Office

150 Oser Ave
Hauppauge, NY 11788

East Northport Post Office

297 Larkfield Rd
East Northport, NY 11731

Kings Park Post Office

125 E Main St
Kings Park, NY 11754

Hauppauge Post Office

960 Wheeler Rd
Hauppauge, NY 11788

Brentwood Post Office

25 2 Nd Ave
Brentwood, NY 11717

Smithtown Post Office

25 Route 111
Smithtown, NY 11787

Greenlawn Post Office

55 Broadway
Greenlawn, NY 11740

Huntington Station Post Office

888 E Jericho Tpke
Huntington Station, NY 11746

Central Islip Post Office

110 E Suffolk Ave
Central Islip, NY 11722

Northport Post Office

240 Main St
Northport, NY 11768

Deer Park Post Office

375 Carlls Path
Deer Park, NY 11729

Centerport Post Office

434 E Main St
Centerport, NY 11721