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Postal Williamstown Post Office
509 State Route 13, Williamstown, NY 13493
Phone: 315-964-2412
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)
PO Box Access Available
Monday 7:00am - 6:00pm
Tuesday 7:00am - 6:00pm
Wednesday 7:00am - 6:00pm
Thursday 7:00am - 6:00pm
Friday 7:00am - 6:00pm
Saturday 7:00am - 6:00pm
Sunday Closed
Monday 3:00pm
Tuesday 3:00pm
Wednesday 3:00pm
Thursday 3:00pm
Friday 3:00pm
Saturday 10:45am
Sunday Closed
Monday 8:30am - 12:00pm, 1:00pm - 2:30pm
Tuesday 8:30am - 12:00pm, 1:00pm - 2:30pm
Wednesday 8:30am - 12:00pm, 1:00pm - 2:30pm
Thursday 8:30am - 12:00pm, 1:00pm - 2:30pm
Friday 8:30am - 12:00pm, 1:00pm - 2:30pm
Saturday 9:30am - 10:30am
Sunday Closed
*This facility does not process US Passports applications or renewals. Check nearby locations below.
- Bulk Mail Acceptance
- Bulk Mail Account Balance
- Bulk Mail New Permit
- Burial Flags
- Business Line
- Business Reply Mail Account Balance
- Business Reply Mail New Permit
- Duck Stamps
- General Delivery
- Money Orders (Domestic)
- Money Orders (Inquiry)
- Pickup Accountable Mail
- Pickup Hold Mail
- PO Box Online
- Street Parking
Visit our Links Page for Holiday Schedule, Change of Address, Hold Mail/Stop Delivery, PO Box rentals and fees, and Available Jobs.
*Please call to verify information. Is anything incorrect? Let us know here
Nearby Post Offices:
Westdale
11129 State Route 13
3.3 miles away
Redfield
7 School Rd
5.2 miles away
Altmar
1964 Mexico St
5.8 miles away
Camden
100 Main St
6.6 miles away
Oswego County