ZIP code 15684 is officially located in the state of Pennsylvania, primarily serving the city of Slickville. It falls under the administrative jurisdiction of Westmoreland County. When planning mail delivery, logistics routing, or demographic research, 15684 operates within the Eastern Time (ET) timezone and supports the 367 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15684 ZIP Code Tabulation Area is approximately 18,567. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $68,684.