304 Area Code is part of 55 counties in the state of West Virginia. There are around 78 cities and 326 other places such as towns, cdps and villages in the 304 area code. Area code 304 is a telephone area code in the North American Numbering Plan (NANP) for the U.S. state of West Virginia. Below you will find more info about Code and also zip codes, counties, cities and the post offices that belong to this Area Code.
Sources: North American Numbering Plan Administration (NANPA), telecom providers, and the U.S. Census Bureau.