ZIP code 17730 is officially located in the state of Pennsylvania, primarily serving the city of Dewart. It falls under the administrative jurisdiction of Northumberland County. When planning mail delivery, logistics routing, or demographic research, 17730 operates within the Eastern Time (ET) timezone and supports the 865 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 17730 ZIP Code Tabulation Area is approximately 9,265. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $50,730.