ZIP code 74027 is officially located in the state of Oklahoma, primarily serving the city of Delaware. It falls under the administrative jurisdiction of Nowata County. When planning mail delivery, logistics routing, or demographic research, 74027 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 74027 ZIP Code Tabulation Area is approximately 7,594. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $99,027.