ZIP code 78703 is officially located in the state of Texas, primarily serving the city of Austin. It falls under the administrative jurisdiction of Travis County. When planning mail delivery, logistics routing, or demographic research, 78703 operates within the Central Time (CT) timezone and supports the 312 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 78703 ZIP Code Tabulation Area is approximately 3,812. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,703.