ZIP code 68757 is officially located in the state of Nebraska, primarily serving the city of Newcastle. It falls under the administrative jurisdiction of Dixon County. When planning mail delivery, logistics routing, or demographic research, 68757 operates within the Central Time (CT) timezone and supports the 477 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 68757 ZIP Code Tabulation Area is approximately 36,877. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $109,757.