Westmont is located in northeast Illinois. Westmont is between the Dupage, Dekalb county. Westmont has 5.03 square miles of land area and 0.11 square miles of water area. As of 2010-2014, the total Westmont population is 25,236, which has grown 2.78% since 2000. The population growth rate is lower than the state average rate of 3.62% and is much lower than the national average rate of 11.61%. Westmont median household income is $57,547 in 2010-2014 and has grown by 11.91% since 2000. The income growth rate is much lower than the state average rate of 22.70% and is much lower than the national average rate of 27.36%. Westmont median house value is $273,600 in 2010-2014 and has grown by 51.83% since 2000. The house value growth rate is much higher than the state average rate of 34.33% 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 Westmont is better than the state average in quality. The Westmont area code is 630.