United States Postal Service 10325 Kensington Pky, Kensington, MD20895 Rated five stars by customers who were surveyed by the Gallup Organization, this branch of the United States Post Office…More treats its patrons well. Since 1963, it has been mailing letters and packages for the Kensington community. Passports can be applied for here as well. There is a slot to allow patrons to mail letters when the lobby is closed. Post office boxes are available for customers to use. A FedEx mailbox is conveniently located outside the building. Packaging materials are sold here, including tape, colored bubble wrap, plain and designed large envelopes, package labels, stamp dispensers, postal scales and postcards.