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United States Postal Service

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Columbia has three post offices. This one, located across from the Columbia Mall in the American City building, is a full-service post office with post office boxes and a small teller/counter operation. Because it's located in downtown Columbia, the post office is frequently busy and congested. 
10227 Wincopin Cir, Columbia, MD 21044
(410) 381-4373
  • Fax: 410-381-2469
  • Accessibility Details: Level Entrance
  • Hours: By appointment.
  • Hours: Mon - Fri, 9am -1pm; 2pm - 5pm; Sat, 9:30am - noon
  • Accessible: yes
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