ZIP code 15422 is officially located in the state of Pennsylvania, primarily serving the city of Chestnut ridge. It falls under the administrative jurisdiction of Fayette County. When planning mail delivery, logistics routing, or demographic research, 15422 operates within the Eastern Time (ET) timezone and supports the 780 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15422 ZIP Code Tabulation Area is approximately 9,880. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $114,422.