Lake Grove Post Office

Find Lake Grove New York post offices and USPS mailing boxes. Post offices provide information on bulk mail services, domestic mail delivery, international shipping, change of address, mail forwarding, PO boxes, and passport services.


Lake Grove Post Office 1001 Hawkins Avenue Lake Grove NY 11755 631-588-7019


Centereach Post Office 245 Centereach Mall Centereach NY 11720 1.8 miles from Lake Grove 631-588-7069

Lake Ronkonkoma Post Office 300 Portion Road Ronkonkoma NY 11779 2.3 miles from Lake Grove 631-588-1292

Nesconset Post Office 226 Smithtown Boulevard Nesconset NY 11767 2.4 miles from Lake Grove 631-265-3278

Saint James Post Office 325 Lake Avenue St. James NY 11780 2.5 miles from Lake Grove 631-584-4138

Niagara University Post Office 1 Sophomore Lane Stony Brook NY 11790 2.8 miles from Lake Grove 716-285-2655

Ronkonkoma Post Office 200 Hawkins Avenue Ronkonkoma NY 11779 3.0 miles from Lake Grove 631-588-0301

Smithtown Post Office 25 Route 111 Smithtown NY 11787 3.7 miles from Lake Grove 631-360-6709

Selden Post Office 109 College Road Selden NY 11784 3.7 miles from Lake Grove 631-732-8627

Holbrook Post Office 445 Furrows Road Holbrook NY 11741 4.2 miles from Lake Grove 631-588-0226

Farmingville Post Office 500 Horseblock Road Farmingville NY 11738 4.3 miles from Lake Grove 631-732-8625

Stony Brook Post Office 129 Main Street Stony Brook NY 11790 4.4 miles from Lake Grove 631-751-5691

Holtsville Post Office 162 Long Island Avenue Holtsville NY 11742 4.9 miles from Lake Grove 631-475-1761

Hauppauge Post Office 960 Wheeler Road Hauppauge NY 11788 5.1 miles from Lake Grove 631-360-6712

East Setauket Post Office 450 Route 25A Setauket-East Setauket NY 11733 5.3 miles from Lake Grove 631-941-4005

Coram Post Office 117 Pauls Path Coram NY 11727 5.6 miles from Lake Grove 631-732-8691

Port Jefferson Station Post Office 544 Jefferson Boulevard Port Jefferson Station NY 11776 5.9 miles from Lake Grove 631-473-2751

Central Islip Post Office 110 East Suffolk Avenue Central Islip NY 11722 6.0 miles from Lake Grove 631-234-0547

Setauket Post Office 101 Main Street Setauket-East Setauket NY 11733 6.0 miles from Lake Grove 631-941-4042

Bohemia Post Office 200 Orville Drive Bohemia NY 11716 6.1 miles from Lake Grove 631-589-2487

About Post Offices

What Change of Address options are available?

Customers can request a temporary or permanent Change of Address either online or in person at the Post Office using PS Form 3575. The online application for Change of Address has a $1.00 identity validation fee.

Is it possible to insure mail and items sent via the USPS?

Yes. Standard mail can be insured for up to $5,000 for an additional fee. Registered mail items can be insured for up to $50,000.

What is the USPS Office of Inspector General?

The Office of Inspector General (OIG) is a division within the USPS responsible for ensuring the integrity and accountability of the postal service. It conducts investigations to safeguard the postal system and performs audits and reviews.