Jefferson County Post Offices


Click on the Post Office for all operating hours, servcies, and other information.

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1. Adams Post Office
27 E Church St
Adams, NY 13605
315-232-2312 Today 8:30am - 1:00pm,
2:00pm - 5:00pmpassport Passports
2. Adams Center Post Office
13346 North St
Adams Center, NY 13606
315-583-5811 Today 8:30am - 1:00pm,
2:30pm - 5:00pm
3. Alexandria Bay Post Office
15 Bethune St
Alexandria Bay, NY 13607
315-482-9521 Today 8:30am - 11:30am,
12:30pm - 5:00pmpassport Passports
4. Antwerp Post Office
50 Main St
Antwerp, NY 13608
315-659-8651 Today 8:00am - 12:00pm
5. Belleville Post Office
8279 State Route 289
Belleville, NY 13611
315-846-5000 Today 9:00am - 1:00pm
6. Black River Post Office
28553 State Route 3
Black River, NY 13612
315-773-5000 Today 8:00am - 11:00am,
12:00pm - 5:00pmpassport Passports
7. Brownville Post Office
118 Brown Blvd
Brownville, NY 13615
315-788-3390 Today 9:30am - 1:00pm,
2:30pm - 5:00pm
8. Calcium Post Office
24841 Sanford Corners Rd
Calcium, NY 13616
315-788-1881 Today 8:00am - 12:00pm,
1:30pm - 4:45pm
9. Cape Vincent Post Office
362 E Broadway St
Cape Vincent, NY 13618
315-654-2424 Today 9:30am - 1:30pm,
2:00pm - 4:30pm
10. Carthage Post Office
521 State St
Carthage, NY 13619
315-493-3600 Today 8:30am - 4:30pmpassport Passports
11. Deer River Post Office
10734 State Route 26
Carthage, NY 13619
315-688-2920 Today 7:45am - 10:30am,
3:00pm - 5:15pm
12. Chaumont Post Office
12061 State Route 12e
Chaumont, NY 13622
315-649-5225 Today 9:30am - 12:00pm,
1:30pm - 4:45pm
13. Clayton Post Office
236 John St
Clayton, NY 13624
315-686-3311 Today 9:00am - 12:00pm,
1:00pm - 4:30pmpassport Passports
14. Depauville Post Office
32523 State Route 12
Depauville, NY 13632
315-686-3040 Today 8:00am - 12:00pm
15. Dexter Post Office
612 Brown St
Dexter, NY 13634
315-639-6946 Today 8:30am - 11:00am,
12:30pm - 5:00pm
16. Ellisburg Post Office
12109 State Route 193
Ellisburg, NY 13636
315-846-5511 Today 8:00am - 12:00pm
17. Evans Mills Post Office
8496 Leray St
Evans Mills, NY 13637
315-629-4820 Today 9:30am - 1:30pm,
2:30pm - 4:45pm
18. Felts Mills Post Office
24456 Main St
Felts Mills, NY 13638
315-773-4435 Today 8:00am - 12:00pm
19. Fishers Landing Post Office
18064 Reeds Point Rd
Fishers Landing, NY 13641
315-686-5008 Today 9:00am - 11:00am
20. Fort Drum Post Office
10720 Mount Belvedere Blvd
Fort Drum, NY 13602
315-772-5220 Today 9:15am - 4:15pmpassport Passports
21. Frontenac Post Office
15749 Round Is
Frontenac, NY 13624
315-686-3311 Today 9:00am - 10:30am
22. Great Bend Post Office
32675 State Route 26
Great Bend, NY 13643
315-493-1517 Today 8:00am - 1:00pm,
2:00pm - 4:45pm
23. Grenell Post Office
16498 Grenell Is
Grenell, NY 13624
315-686-3311 Today 9:00am - 10:30am
24. Henderson Post Office
8872 State Route 178
Henderson, NY 13650
315-938-5321 Today 8:00am - 12:00pm,
1:00pm - 3:00pm
25. Henderson Harbor Post Office
13190 County Route 123
Henderson Harbor, NY 13651
315-938-5023 Today 8:00am - 12:00pm
26. La Fargeville Post Office
36327 State Route 180
La Fargeville, NY 13656
315-658-9911 Today 8:45am - 12:00pm,
1:00pm - 3:45pm
27. Lorraine Post Office
20693 County Route 93
Lorraine, NY 13659
315-232-4938 Today 8:00am - 12:00pm
28. Mannsville Post Office
306 S Main St
Mannsville, NY 13661
315-465-4065 Today 8:00am - 12:00pm
29. Murray Isle Post Office
42650 Murray Is
Murray Isle, NY 13624
315-686-3311 Today 9:00am - 10:30am
30. Natural Bridge Post Office
43889 State Route 3
Natural Bridge, NY 13665
315-644-4331 Today 8:00am - 12:00pm
31. Philadelphia Post Office
2 S Main St
Philadelphia, NY 13673
315-642-3476 Today 9:00am - 12:30pm,
2:00pm - 4:30pm
32. Pierrepont Manor Post Office
4685 Us Route 11
Pierrepont Manor, NY 13674
315-465-6995 Today 8:00am - 12:00pm
33. Redwood Post Office
43711 State Route 37
Redwood, NY 13679
315-482-3121 Today 8:00am - 12:00pm,
1:00pm - 3:00pm
34. Rodman Post Office
12509 School St
Rodman, NY 13682
315-232-4451 Today 8:00am - 12:00pm
35. Sackets Harbor Post Office
107 W Main St
Sackets Harbor, NY 13685
315-646-2100 Today 9:00am - 1:00pm,
2:30pm - 5:00pm
36. Theresa Post Office
112 Commercial St
Theresa, NY 13691
315-628-5991 Today 7:45am - 11:00am,
12:00pm - 2:45pm
37. Three Mile Bay Post Office
8685 State Route 12e
Three Mile Bay, NY 13693
315-649-5830 Today 8:00am - 12:00pm
38. Watertown Post Office
232 Commerce Park Dr
Watertown, NY 13601
315-786-5982 Today 9:00am - 6:00pmpassport Passports
39. Watertown 2 Post Office
232 Commerce Park Dr
Watertown, NY 13601
315-786-5900
40. Fineview Post Office
44392 County Route 191
Wellesley Island, NY 13640
315-482-3700 Today 8:15am - 12:00pm,
1:00pm - 4:45pm
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