Weirton is a city in Hancock and Brooke counties in the U.S. state of West Virginia. Located along the Ohio River in the state's Northern Panhan…Weirton is a city in Hancock and Brooke counties in the U.S. state of West Virginia. Located along the Ohio River in the state's Northern Panhandle, the city's population was 19,163 as of the 2020 census, making it the seventh most populous city in the state.