Amarillo, TX

ZIP code 79177 is a special-purpose PO Box code for Amarillo, Texas, rather than a conventional area with a defined street-delivery boundary. Consequently, no major public landmark can be reliably identified as being inside 79177. Amarillo’s best-known sites—including Cadillac Ranch, the American Quarter Horse Hall of Fame & Museum, and the Route 66 Historic District—are city attractions, but their addresses fall outside this ZIP code.