Suffolk County Post Offices

501 Montauk Hwy
Amagansett, New York 11930

77 Ireland Pl
Amityville, New York 11701

212 Linda Ave
Aquebogue, New York 11931

110 Cooper St
Babylon, New York 11702

1314 5th Ave
Bay Shore, New York 11706

850 Montauk Hwy
Bayport, New York 11705

26 Station Rd
Bellport, New York 11713

141 Montauk Hwy
Blue Point, New York 11715

200 Orville Dr
Bohemia, New York 11716

25 2nd Ave
Brentwood, New York 11717

2322 Montauk Hwy
Bridgehampton, New York 11932

145 Orinoco Dr
Brightwaters, New York 11718

2512 Montauk Hwy
Brookhaven, New York 11719

3690 Middle Country Rd
Calverton, New York 11933

35 Railroad Ave
Center Moriches, New York 11934

245 Centereach Mall
Centereach, New York 11720

434 E Main St
Centerport, New York 11721

110 E Suffolk Ave
Central Islip, New York 11722

126 Main St
Cold Spring Harbor, New York 11724

150 Veterans Memorial Hwy
Commack, New York 11725

695 Marconi Blvd
Copiague, New York 11726

117 Pauls Path
Coram, New York 11727

240 Griffing St
Cutchogue, New York 11935

375 Carlls Path
Deer Park, New York 11729

12 Gay Rd
East Hampton, New York 11937

11 Greenwood Ave
East Islip, New York 11730

9165 Main Rd
East Marion, New York 11939

3 Atlantic Ave
East Moriches, New York 11940

297 Larkfield Rd
East Northport, New York 11731

6 Bay Ave
East Quogue, New York 11942

450 Route 25a
East Setauket, New York 11733

24 Eastport Manor Rd
Eastport, New York 11941

500 Horseblock Rd
Farmingville, New York 11738

1 Oriental Ave
Fishers Island, New York 06390

62 River Rd
Great River, New York 11739

55 Broadway
Greenlawn, New York 11740

131 Front St
Greenport, New York 11944

16 New York Ave
Huntington, New York 11743

16 Ponquogue Ave
Hampton Bays, New York 11946

960 Wheeler Rd
Hauppauge, New York 11788

445 Furrows Rd
Holbrook, New York 11741

162 Long Island Ave
Holtsville, New York 11742

55 Gerard St
Huntington, New York 11743

888 E Jericho Turnpike
Huntington Station, New York 11746

309 Main St Unit 3
Islip, New York 11751

136 Carleton Ave
Islip Terrace, New York 11752

1451 Route 25
Jamesport, New York 11947

125 E Main St
Kings Park, New York 11754

1001 Hawkins Ave
Lake Grove, New York 11755

2168 Main Rd
Laurel, New York 11948

65 E Hoffman Ave
Lindenhurst, New York 11757

525 Eastport Manor Rd
Manorville, New York 11949

1450 Montauk Hwy
Mastic, New York 11950

110 Mastic Rd
Mastic Beach, New York 11951

140 Love Ln
Mattituck, New York 11952

1905 Route 112
Medford, New York 11763

718 Walt Whitman Rd
Melville, New York 11747

780 Middle Country Rd
Middle Island, New York 11953

47 Echo Ave
Miller Place, New York 11764

73 S Euclid Ave
Montauk, New York 11954

290 Montauk Hwy
Moriches, New York 11955

457 Route 25a
Mount Sinai, New York 11766

226 Smithtown Blvd
Nesconset, New York 11767

375 1st St
New Suffolk, New York 11956

1196 Deer Park Ave
North Babylon, New York 11703

240 Main St
Northport, New York 11768

927 Montauk Hwy
Oakdale, New York 11769

315 Cottage Walk
Ocean Beach, New York 11770

980 Village Ln
Orient, New York 11957

170 E Main St
Patchogue, New York 11772

2575 Peconic Ln
Peconic, New York 11958

407 E Main St Ste 17
Port Jefferson, New York 11777

544 Jefferson Plz
Port Jefferson Station, New York 11776

6 Midland St
Quogue, New York 11959

137 S Country Rd
Remsenburg, New York 11960

1700 Middle Country Rd
Ridge, New York 11961

1210 W Main St
Riverhead, New York 11901

346 Route 25a Ste 84
Rocky Point, New York 11778

200 Hawkins Ave
Ronkonkoma, New York 11779

21 Long Island Ave
Sag Harbor, New York 11963

542 Sagg Main St
Sagaponack, New York 11962

325 Lake Ave
Saint James, New York 11780

130 Greene Ave
Sayville, New York 11782

109 College Plz
Selden, New York 11784

45 N Ferry Rd
Shelter Island, New York 11964

6 Grand Ave
Shelter Island Heights, New York 11965

800 Montauk Hwy Ste 1
Shirley, New York 11967

69 Route 25a
Shoreham, New York 11786

25 Route 111
Smithtown, New York 11787

25 New York Ave
Sound Beach, New York 11789

70 2nd St
South Jamesport, New York 11970

123 N Sea Rd
Southampton, New York 11968

710 Traveler St
Southold, New York 11971

323 Montauk Hwy
Speonk, New York 11972

129 Main St
Stony Brook, New York 11790

2 Center St
Upton, New York 11973

1816 Wading River Manor Rd
Wading River, New York 11792

357 Montauk Hwy
Wainscott, New York 11975

670 Montauk Hwy
Water Mill, New York 11976

385 Route 109
West Babylon, New York 11704

480 Union Blvd
West Islip, New York 11795

12 Washington Ave
West Sayville, New York 11796

408 Mill Rd
Westhampton, New York 11977

170 Main St
Westhampton Beach, New York 11978

1569 Straight Path
Wyandanch, New York 11798

5 E Main St
Yaphank, New York 11980

Suffolk County

There are 106 US Post Offices in Suffolk County serving a total of 1,522,587 residents equating to 14,364 residents per post office. It's estimated that approximately 2,430,219 packages are handled across the 106 county post offices annually. Suffolk County /\u02c8s\u028cf\u0259k/ is a suburban county on Long Island and the easternmost county in the U.S. state of New York. As of the 2010 census, the county's population was 1,493,350, estimated to have increased to 1,501,587 in 2015, making it the fourth-most populous county in New York. Its county seat is Riverhead, though most county offices are located in Hauppauge. The county was named after the county of Suffolk in England, from where its earliest European settlers came. Suffolk County incorporates the easternmost extreme of the New York City metropolitan area. The largest of Long Island's four counties and the second-largest of 62 counties in New York State, Suffolk measures 86 miles (138 km) in length and 26 miles (42 km) in width at its widest (including water). Major scientific research facilities in Suffolk County include Brookhaven National Laboratory in Upton and Plum Island Animal Disease Center on Plum Island.