Williamstown is located in northwest West Virginia. Williamstown is part of Wood County. Williamstown has 1.38 square miles of land area and 0.41 square miles of water area. As of 2010-2014, the total Williamstown population is 2,919, which has shrunk 2.57% since 2000. The population growth rate is much lower than the state average rate of 2.52% and is much lower than the national average rate of 11.61%. Williamstown median household income is $48,393 in 2010-2014 and has grown by 33.15% since 2000. The income growth rate is lower than the state average rate of 40.01% and is higher than the national average rate of 27.36%. Williamstown median house value is $132,600 in 2010-2014 and has grown by 61.71% since 2000. The house value growth rate is much higher than the state average rate of 37.64% and is higher than the national average rate of 46.91%. As a reference, the national Consumer Price Index (CPI) inflation rate for the same period is 26.63%. On average, the public school district that covers Williamstown is better than the state average in quality. The Williamstown area code is 304.