USPS Post Office Security Sq - Windsor Mill MD

Address:

6901 Security Blvd, Windsor Mill MD 21244 (Directions from | to)

Phone:

(410) 594-9284

Fax:

(410) 594-9318

Website:

www.usps.com

Categories:

Mail & Shipping

Opening Hours

Monday: 11:00 AM-1:00 PM
Tuesday: 11:00 AM-1:00 PM
Wednesday: 11:00 AM-1:00 PM
Thursday: 11:00 AM-1:00 PM
Friday: 11:00 AM-1:00 PM
Saturday: 11:00 AM-1:00 PM
Sunday: Closed

Street Parking Available

Additional Phones

Toll-Free: 1-800-ASK-USPS
TTY: (877) 889-2457

Services

Call Referral, Duck Stamps, Greeting Card Services, Label Broker, Money Orders (Domestic), Money Orders (Inquiry), Passport Photo, Passport Walk-In, Priority Mail International

Call Referral Hours

Mon-Sat: 11:00-13:00
Sun: Closed

Last Collection Hours

Mon: 1:30 PM
Tue: 1:30 PM
Wed: 1:30 PM
Thu: 1:30 PM
Fri: 1:30 PM
Sat: 1:30 PM
Sun: -

Lobby Hours

Mon-Sat: 11:00-13:00
Sun: Closed

Passport Walk-In Hours

Mon-Sat: 11:00-14:00
Sun: Closed

PO Box Access Hours

Mon-Sat: 11:00-13:00
Sun: Closed

Hours

Mon-Sat: 11:00-13:00
Sun: Closed

Other USPS Post Office Locations

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Last updated:

30 Jun 2025
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