ZIP code 41503 is officially located in the state of Kentucky, primarily serving the city of South williamson. It falls under the administrative jurisdiction of Pike County. When planning mail delivery, logistics routing, or demographic research, 41503 operates within the Eastern Time (ET) timezone and supports the 303 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 41503 ZIP Code Tabulation Area is approximately 17,803. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $91,503.