Wynantskill Post Office

85 Main Ave, Wynantskill, NY 12198

Contact Numbers:

Phone: 518-283-5678
TTY: 877-889-2457
Toll-Free: 1-800-Ask-USPS® (275-8777)

Retail Hours

Bulk Mail Acceptance Hours

Monday-Friday 8:30am - 12:30pm, 2:15pm - 4:30pm
Saturday 9:30am - 12:00pm
Sunday Closed

Pickup Services Hours

Monday-Friday 7:45am - 1:00pm, 2:00pm - 5:00pm
Saturday 7:45am - 12:00pm
Sunday Closed

Lobby Hours

Monday-Friday 7:00am - 5:15pm
Saturday 7:00am - 3:00pm
Sunday Closed

PO Box Access Hours

Monday-Friday 7:00am - 5:15pm
Saturday 7:00am - 3:00pm
Sunday Closed

PO Box Delivery Time

Monday-Saturday 9:00am
Sunday Closed

Last Collection Times

Monday-Friday 5:00pm
Saturday 3:00pm
Sunday Closed

Carrier Facility Hours

Monday-Saturday 7:15am - 3:45pm
Sunday Closed

Global Express Guaranteed® Hours

Monday-Friday 8:30am - 1:00pm, 2:00pm - 5:00pm
Saturday 9:00am - 12:30pm
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 Reply Mail Account Balance
  • Business Reply Mail New Permit
  • Duck Stamps
  • General Delivery
  • Global Express Guaranteed®
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Pickup Accountable Mail
  • Pickup Hold Mail
  • PO Box Online
  • Priority Mail International®
  • Lot Parking

Visit our Links Page for Change of Address, Hold Mail/Stop Delivery, PO Boxes™ rentals and fees, Rates on Postage Stamps and Freight/Shipping, Holidays, Bulk Mail, Money Orders, and Available Jobs.

*Please call to verify information. Is anything incorrect? Let us know here

Nearby Post Offices:

400 Broadway
2.2 miles away

West Sand Lake
38 Mall Way
2.5 miles away

145 16th St
2.6 miles away

Green Island
137 George St
2.7 miles away


*Comments below are not read by postal employees. Please do not post personal information.

*By clicking Submit, you agree to our Privacy Policy & Terms of Use.


I have used this post office to mail several packages over the past few months. While it is convenient for me to stop on my way home, I have not been satisfied with the service at this location. I have not been asked how I would like my packages to be send (overnight, 2 day, etc) and I have had to mention myself that I would like signature confirmation added, sometimes after a shipping option has already been selected and printed without my knowledge. Asking how you would like something shipped seems very basic to me. Bradley also fails to ask if I would like cash back with my purchase. The last time I sent a package I was asked but he selected "no cash back" before I could open my mouth. He then criticized me for not letting me know quick enough. Although this post office is not very busy be prepared to wait in line as Bradley has long conversations with other customers. He seems to go out of his way to strike up a conversation so be prerared.

*uspspostoffices.com is not a part of, or affiliated with, the official United States Postal Service (USPS).