ZIP code 11557 is officially located in the state of New york, primarily serving the city of Hewlett. It falls under the administrative jurisdiction of Nassau County. When planning mail delivery, logistics routing, or demographic research, 11557 operates within the Eastern Time (ET) timezone and supports the 637 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 11557 ZIP Code Tabulation Area is approximately 10,437. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $109,557.