Delta is located close to the center of Utah. Delta is part of Millard County. Delta has 4.64 square miles of land area and 0.14 square miles of water area. As of 2010-2014, the total Delta population is 3,461, which has grown 7.85% since 2000. The population growth rate is much lower than the state average rate of 27.98% and is lower than the national average rate of 11.61%. Delta median household income is $49,659 in 2010-2014 and has grown by 31.47% since 2000. The income growth rate is about the same as the state average rate of 30.88% and is higher than the national average rate of 27.36%. Delta median house value is $123,400 in 2010-2014 and has grown by 52.53% since 2000. The house value growth rate is higher than the state average rate of 45.45% 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 Delta is much better than the state average in quality. The Delta area code is 435.