ZIP code 18430 is officially located in the state of Pennsylvania, primarily serving the city of Herrick center. It falls under the administrative jurisdiction of Susquehanna County. When planning mail delivery, logistics routing, or demographic research, 18430 operates within the Eastern Time (ET) timezone and supports the 268 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 18430 ZIP Code Tabulation Area is approximately 12,168. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $50,430.