McAllen, TX

ZIP code 78505 is a PO Box-only postal code associated with McAllen, Texas, rather than a conventional area defined by street-address boundaries. It therefore has no clearly bounded set of landmarks that can accurately be said to lie within it. McAllen’s prominent sites, including McAllen Convention Center, Quinta Mazatlán, and McAllen International Airport, should not be presented as landmarks of 78505 without verified address-level evidence.