Knightsen is located close to the center of California. Knightsen is part of Contra Costa County. Knightsen has 8.37 square miles of land area and 0.09 square miles of water area. As of 2010-2014, the total Knightsen population is 1,644, which has grown 90.94% 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%. Knightsen median household income is $78,672 in 2010-2014 and has grown by 33.50% since 2000. The income growth rate is higher than the state average rate of 29.47% and is higher than the national average rate of 27.36%. Knightsen median house value is $565,100 in 2010-2014 and has grown by 74.20% since 2000. The house value growth rate is about the same as the state average rate of 75.60% and is much 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 Knightsen is better than the state average in quality. The Knightsen area code is 510.