ZIP code 15780 is officially located in the state of Pennsylvania, primarily serving the city of Valier. It falls under the administrative jurisdiction of Jefferson County. When planning mail delivery, logistics routing, or demographic research, 15780 operates within the Eastern Time (ET) timezone and supports the 375 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15780 ZIP Code Tabulation Area is approximately 22,075. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $100,780.