ZIP code 18801 is officially located in the state of Pennsylvania, primarily serving the city of Montrose. It falls under the administrative jurisdiction of Susquehanna County. When planning mail delivery, logistics routing, or demographic research, 18801 operates within the Eastern Time (ET) timezone and supports the 678 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 18801 ZIP Code Tabulation Area is approximately 19,578. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,801.