ZIP code 26660 is officially located in the state of West virginia, primarily serving the city of Calvin. It falls under the administrative jurisdiction of Nicholas County. When planning mail delivery, logistics routing, or demographic research, 26660 operates within the Eastern Time (ET) timezone and supports the 444 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 26660 ZIP Code Tabulation Area is approximately 20,044. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $60,660.