Post Office Located at 6901 Security Blvd, Windsor Mill, Maryland, MD, 21244-2412
472 Post Offices in the State of Maryland
Security Sq is located in 6901 Security Blvd, Windsor Mill, Maryland (MD), 21244-2412. There are 472 post offices in the state of MD that handle 2,073,296,696 mails and 122,242,720 packages for the total population of 10,675,019. The state’s post offices has annual operating revenue of $ 1,238,509,380 in total, with 4,033 vehicles and 8,593 career employees.
Windsor Mill Post Office
NOTICE: The Service is an essential goverment service, and will remain open wherever possible
6901 Security Blvd, Windsor Mill, Maryland, MD, 21244-2412
Contact Numbers
Phone: 410-594-9284
Fax: 410-594-9318
TTY: 877-889-2457
Toll-Free: 1-800-ASK-USPS
Hours
Retail Hours
MONDAY
11:00:00 - 13:00:00
TUESDAY
11:00:00 - 13:00:00
WEDNESDAY
11:00:00 - 13:00:00
THURSDAY
11:00:00 - 13:00:00
FRIDAY
11:00:00 - 13:00:00
SATURDAY
11:00:00 - 13:00:00
SUNDAY
Closed
Lobby Hours
MONDAY
11:00:00 - 13:00:00
TUESDAY
11:00:00 - 13:00:00
WEDNESDAY
11:00:00 - 13:00:00
THURSDAY
11:00:00 - 13:00:00
FRIDAY
11:00:00 - 13:00:00
SATURDAY
11:00:00 - 13:00:00
SUNDAY
Closed
Last Collection Hours
MONDAY
13:30:00
TUESDAY
13:30:00
WEDNESDAY
13:30:00
THURSDAY
13:30:00
FRIDAY
13:30:00
SATURDAY
13:30:00
SUNDAY
Closed
PO Box Access Hours
MONDAY
11:00:00 - 13:00:00
TUESDAY
11:00:00 - 13:00:00
WEDNESDAY
11:00:00 - 13:00:00
THURSDAY
11:00:00 - 13:00:00
FRIDAY
11:00:00 - 13:00:00
SATURDAY
11:00:00 - 13:00:00
SUNDAY
Closed
Call Referral Hours
MONDAY
11:00:00 - 13:00:00
TUESDAY
11:00:00 - 13:00:00
WEDNESDAY
11:00:00 - 13:00:00
THURSDAY
11:00:00 - 13:00:00
FRIDAY
11:00:00 - 13:00:00
SATURDAY
11:00:00 - 13:00:00
SUNDAY
Closed
See More Hours
Services at this Location
- Call Referral
- Duck Stamps
- General Delivery
- Greeting Card Services
- Label Broker®
- Money Orders (Domestic)
- Money Orders (Inquiry)
- Money Orders (International)
- Priority Mail International®
Online Services and Resources
- Print a Label with Postage
- Schedule a Pickup
- Buy Stamps
- Forward Mail
- Reserve or Renew a PO Box
- Schedule a Redelivery
- Mailing Requirements
- Media/Press Contacts
- Vandalism/Theft
Nearby Self-Service Kiosks
Nearby Alternate Locations
* These estimates were determined by taking the national statistics for each of these measures as provided by the USPS and then determining the proportion of that total for each city based on that city’s population according to the 2020 US Census.