Pacheco is located in Contra costa county California with a geographic area of 0.8 square miles. The total population in Pacheco is 4,775 with 46.2% male and 53.8% female. Children under age 5 represent 4.4% of the population, under age 18 equal 15.3% of the population and over age 65 is 14.8% of the population. The median household income is $88,714, per capita income is $40,149. There are a total of 1,798 housing units with 70.7% owner occupied. Education includes 18.9% of residents that are high school graduates and 22.1% with a bachelor's degree or higher. The average temperature in Pacheco in the summer is 76 degrees, and in the winter 43 degrees.