Potomac is located close to the center of Maryland. Potomac is part of Montgomery County. Potomac has 25.11 square miles of land area and 1.46 square miles of water area. As of 2010-2014, the total Potomac population is 46,475, which has grown 3.69% since 2000. The population growth rate is much lower than the state average rate of 11.16% and is much lower than the national average rate of 11.61%. Potomac median household income is $181,385 in 2010-2014 and has grown by 40.68% since 2000. The income growth rate is about the same as the state average rate of 40.25% and is higher than the national average rate of 27.36%. Potomac median house value is $878,200 in 2010-2014 and has grown by 94.81% since 2000. The house value growth rate is about the same as 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 Potomac is better than the state average in quality. The Potomac area code is 301.