Delta is located in Millard county Utah with a geographic area of 8.6 square miles. The total population in Delta is 3,604 with 48.5% male and 51.5% female. Children under age 5 represent 8.4% of the population, under age 18 equal 32.6% of the population and over age 65 is 17.5% of the population. The median household income is $52,639, per capita income is $22,905. There are a total of 1,273 housing units with 61.6% owner occupied. Education includes 38.4% of residents that are high school graduates and 24.6% with a bachelor's degree or higher. The average temperature in Delta in the summer is 72 degrees, and in the winter 30 degrees.