SECURITY SQ, MD Post Office

6901 SECURITY BLVD WINDSOR MILL, MD 21244 - 2412

Lot Parking Available

Phone 410-594-9284

Fax 410-594-9318

TTY 877-889-2457

Hours

  • Mon-Sat 11:00 AM - 01:00 PM
  • Sun Closed

Lobby Hours

  • Mon-Sat 11:00 AM - 01:00 PM
  • Sun Closed

Last Collection Hours

  • Mon-Sat 01:30 PM
  • Sun Closed

PO Box Access Hours

  • Mon-Sat 11:00 AM - 01:00 PM
  • Sun Closed

Post Office On-Site Services

  • Call Referral
  • Duck Stamps
  • General Delivery
  • Greeting Card Services
  • Money Orders (Domestic)
  • Money Orders (Inquiry)
  • Money Orders (International)
  • Priority Mail International┬«