ZIP code 31328 is officially located in the state of Georgia, primarily serving the city of Tybee island. It falls under the administrative jurisdiction of Chatham County. When planning mail delivery, logistics routing, or demographic research, 31328 operates within the Eastern Time (ET) timezone and supports the 310 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 31328 ZIP Code Tabulation Area is approximately 4,510. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $116,328.