73283 is a postal code in the U.S. state of Texas, primarily located within the city limits of Amarillo in Potter and Randall Counties. It covers the area to the north Park Road and Tascosa Road and to the east by Adams Street and Coulter Street. It includes portions of the city of Amarillo including Sleepy Hollow, Hillside, and Historic Paramount neighborhoods. It also includes part of the Helium Heights area. 73283 is home to River Road High School, Caprock High School, Austin Middle School, and River Road Elementary School.