ZIP code 46251 is officially located in the state of Indiana, primarily serving the city of Castleton. It falls under the administrative jurisdiction of Marion County. When planning mail delivery, logistics routing, or demographic research, 46251 operates within the Central Time (CT) timezone and supports the 594 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 46251 ZIP Code Tabulation Area is approximately Data Not Available. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $107,251.