ZIP code 51652 is officially located in the state of Iowa, primarily serving the city of Sidney. It falls under the administrative jurisdiction of Fremont County. When planning mail delivery, logistics routing, or demographic research, 51652 operates within the Central Time (CT) timezone and supports the 560 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 51652 ZIP Code Tabulation Area is approximately 43,260. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $124,652.