ZIP code 18078 is officially located in the state of Pennsylvania, primarily serving the city of Schnecksville. It falls under the administrative jurisdiction of Lehigh County. When planning mail delivery, logistics routing, or demographic research, 18078 operates within the Eastern Time (ET) timezone and supports the 811 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 18078 ZIP Code Tabulation Area is approximately 42,811. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $66,078.