ZIP code 15204 is officially located in the state of Pennsylvania, primarily serving the city of Corliss. It falls under the administrative jurisdiction of Allegheny County. When planning mail delivery, logistics routing, or demographic research, 15204 operates within the Eastern Time (ET) timezone and supports the 781 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15204 ZIP Code Tabulation Area is approximately 4,281. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $108,204.