Colfax is located in northwest California. Colfax is part of Placer County. Colfax has 1.41 square miles of land area and has no water area. As of 2010-2014, the total Colfax population is 2,424, which has grown 62.03% since 2000. The population growth rate is much higher than the state average rate of 12.39% and is much higher than the national average rate of 11.61%. Colfax median household income is $46,902 in 2010-2014 and has grown by 25.44% since 2000. The income growth rate is lower than the state average rate of 29.47% and is lower than the national average rate of 27.36%. Colfax median house value is $187,000 in 2010-2014 and has grown by 25.17% since 2000. The house value growth rate is much lower than the state average rate of 75.60% and is much lower 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 Colfax is better than the state average in quality. The Colfax area code is 530.