Gustine is located in Merced county California with a geographic area of 1.6 square miles. The total population in Gustine is 5,748 with 51.4% male and 48.6% female. Children under age 5 represent 4.4% of the population, under age 18 equal 20.8% of the population and over age 65 is 14.8% of the population. The median household income is $49,984, per capita income is $27,879. There are a total of 2,137 housing units with 45.8% owner occupied. Education includes 27.6% of residents that are high school graduates and 19.0% with a bachelor's degree or higher. The average temperature in Gustine in the summer is 75 degrees, and in the winter 43 degrees.