Princeton is located in south West Virginia. Princeton is part of Mercer County. Princeton has 3.01 square miles of land area and 0.04 square miles of water area. As of 2010-2014, the total Princeton population is 6,387, which has grown 0.63% since 2000. The population growth rate is lower than the state average rate of 2.52% and is much lower than the national average rate of 11.61%. Princeton median household income is $30,523 in 2010-2014 and has grown by 40.43% since 2000. The income growth rate is about the same as the state average rate of 40.01% and is higher than the national average rate of 27.36%. Princeton median house value is $85,900 in 2010-2014 and has grown by 47.59% since 2000. The house value growth rate is higher than the state average rate of 37.64% and is about the same as 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 Princeton is close to the state average in quality. The Princeton area code is 304.