ZIP code 46311 is officially located in the state of Indiana, primarily serving the city of Dyer. It falls under the administrative jurisdiction of Lake County. When planning mail delivery, logistics routing, or demographic research, 46311 operates within the Central Time (CT) timezone and supports the 251 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 46311 ZIP Code Tabulation Area is approximately 5,151. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $127,311.