Gaithersburg is located close to the center of Maryland. Gaithersburg is part of Montgomery County. Gaithersburg has 10.20 square miles of land area and 0.14 square miles of water area. As of 2010-2014, the total Gaithersburg population is 63,491, which has grown 20.68% since 2000. The population growth rate is much higher than the state average rate of 11.16% and is much higher than the national average rate of 11.61%. Gaithersburg median household income is $78,441 in 2010-2014 and has grown by 31.00% since 2000. The income growth rate is lower than the state average rate of 40.25% and is higher than the national average rate of 27.36%. Gaithersburg median house value is $363,800 in 2010-2014 and has grown by 112.62% since 2000. The house value growth rate is higher than the state average rate of 96.92% 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 Gaithersburg is better than the state average in quality. The Gaithersburg area codes are 240, 301.