Holbrook is located in Navajo county Arizona with a geographic area of 17.3 square miles. The total population in Holbrook is 5,073 with 56.4% male and 43.6% female. Children under age 5 represent 5.7% of the population, under age 18 equal 28.6% of the population and over age 65 is 11.6% of the population. The median household income is $45,106, per capita income is $19,798. There are a total of 1,620 housing units with 56.2% owner occupied. Education includes 22.9% of residents that are high school graduates and 14.8% with a bachelor's degree or higher. The average temperature in Holbrook in the summer is 75 degrees, and in the winter 49 degrees.