Smithfield is located in north West Virginia. Smithfield is between the Wetzel, Marion county. Smithfield has 0.29 square miles of land area and 0.01 square miles of water area. As of 2010-2014, the total Smithfield population is 166, which has shrunk 6.21% 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%. Smithfield median household income is $18,229 in 2010-2014 and has has shrunk by 1.46% since 2000. The income growth rate is much lower than the state average rate of 40.01% and is much lower than the national average rate of 27.36%. Smithfield median house value is $43,500 in 2010-2014 and has shrunk by -58.18% 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 Smithfield is better than the state average in quality. The Smithfield area code is 304.