ZIP code 15778 is officially located in the state of Pennsylvania, primarily serving the city of Timblin. It falls under the administrative jurisdiction of Jefferson County. When planning mail delivery, logistics routing, or demographic research, 15778 operates within the Eastern Time (ET) timezone and supports the 883 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15778 ZIP Code Tabulation Area is approximately 17,683. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $66,778.