Jefferson County Post Offices


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27 E Church St
Adams, New York 13605

13346 North St
Adams Center, New York 13606

15 Bethune St
Alexandria Bay, New York 13607

50 Main St
Antwerp, New York 13608

8279 State Route 289
Belleville, New York 13611

28553 State Route 3
Black River, New York 13612

118 Brown Blvd
Brownville, New York 13615

24841 Sanford Corners Rd
Calcium, New York 13616

362 E Broadway St
Cape Vincent, New York 13618

521 State St
Carthage, New York 13619

12061 State Route 12e
Chaumont, New York 13622

236 John St
Clayton, New York 13624

32523 State Route 12
Depauville, New York 13632

612 Brown St
Dexter, New York 13634

12109 State Route 193
Ellisburg, New York 13636

8496 Leray St
Evans Mills, New York 13637

24456 Main St
Felts Mills, New York 13638

44392 County Route 191
Wellesley Island, New York 13640

18064 Reeds Point Rd
Fishers Landing, New York 13641

10720 Mount Belvedere Blvd
Fort Drum, New York 13602

32675 State Route 26
Great Bend, New York 13643

8872 State Route 178
Henderson, New York 13650

13190 County Route 123
Henderson Harbor, New York 13651

36327 State Route 180
La Fargeville, New York 13656

20693 County Route 93
Lorraine, New York 13659

306 S Main St
Mannsville, New York 13661

2 S Main St
Philadelphia, New York 13673

4685 Us Route 11
Pierrepont Manor, New York 13674

43711 State Route 37
Redwood, New York 13679

12509 School St
Rodman, New York 13682

107 W Main St
Sackets Harbor, New York 13685

112 Commercial St
Theresa, New York 13691

8685 State Route 12e
Three Mile Bay, New York 13693

232 Commerce Park Dr
Watertown, New York 13601

Jefferson County

There are 34 US Post Offices in Jefferson County serving a total of 106,767 residents equating to 3,140 residents per post office. It's estimated that approximately 170,412 packages are handled across the 34 county post offices annually. Jefferson County is a county located in the U.S. state of New York. As of the 2010 census, the population was 116,229. Its county seat is Watertown. The county is named after Thomas Jefferson, third President of the United States of America. It is adjacent to Lake Ontario, southeast from the Canada\u2013US border of Ontario. Jefferson County comprises the Watertown-Fort Drum, NY Metropolitan Statistical Area. The U.S. Tenth Mountain Division is based at Fort Drum."