Fairfax is located in west California. Fairfax is part of Marin County. Fairfax has 2.20 square miles of land area and has no water area. As of 2010-2014, the total Fairfax population is 7,546, which has grown 3.10% since 2000. The population growth rate is much lower than the state average rate of 12.39% and is much lower than the national average rate of 11.61%. Fairfax median household income is $93,354 in 2010-2014 and has grown by 59.68% since 2000. The income growth rate is much higher than the state average rate of 29.47% and is much higher than the national average rate of 27.36%. Fairfax median house value is $681,000 in 2010-2014 and has grown by 62.80% since 2000. The house value growth rate is lower than the state average rate of 75.60% 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 Fairfax is much better than the state average in quality. The Fairfax area code is 415.