ZIP code 15736 is officially located in the state of Pennsylvania, primarily serving the city of Elderton. It falls under the administrative jurisdiction of Armstrong County. When planning mail delivery, logistics routing, or demographic research, 15736 operates within the Eastern Time (ET) timezone and supports the 383 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 15736 ZIP Code Tabulation Area is approximately 33,283. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $52,736.