ZIP code 17520 is officially located in the state of Pennsylvania, primarily serving the city of East petersburg. It falls under the administrative jurisdiction of Lancaster County. When planning mail delivery, logistics routing, or demographic research, 17520 operates within the Eastern Time (ET) timezone and supports the 776 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 17520 ZIP Code Tabulation Area is approximately 40,676. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $80,520.