Grantsville is located in northwest Utah. Grantsville is part of Tooele County. Grantsville has 19.34 square miles of land area and 0.03 square miles of water area. As of 2010-2014, the total Grantsville population is 9,391, which has grown 56.13% since 2000. The population growth rate is much higher than the state average rate of 27.98% and is much higher than the national average rate of 11.61%. Grantsville median household income is $65,818 in 2010-2014 and has grown by 44.29% since 2000. The income growth rate is higher than the state average rate of 30.88% and is much higher than the national average rate of 27.36%. Grantsville median house value is $186,200 in 2010-2014 and has grown by 47.19% since 2000. The house value growth rate is about the same as the state average rate of 45.45% and is about the same as 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 Grantsville is much better than the state average in quality. The Grantsville area code is 435.