Dallas, TX

ZIP code 75340 is a unique-use, PO-box postal code for Dallas, Texas, rather than a conventional area with defined neighborhood boundaries. As a result, there is no reliable set of landmarks that can be said to lie within it. Nearby central Dallas attractions include Dealey Plaza, The Sixth Floor Museum at Dealey Plaza, Reunion Tower, and the Dallas World Aquarium, but they should not be assumed to be inside ZIP code 75340.