ZIP code 25401 is officially located in the state of West virginia, primarily serving the city of Martinsburg. It falls under the administrative jurisdiction of Berkeley County. When planning mail delivery, logistics routing, or demographic research, 25401 operates within the Eastern Time (ET) timezone and supports the 824 area codes.
According to the latest US Census Bureau and American Community Survey (ACS) datasets, the total population residing within the 25401 ZIP Code Tabulation Area is approximately 23,224. Understanding local economics is critical for market analysis; the median household income in this postal area sits at $57,401.