Brinkley is located in Monroe county Arkansas with a geographic area of 5.7 square miles. The total population in Brinkley is 2,661 with 52.6% male and 47.4% female. Children under age 5 represent 7.6% of the population, under age 18 equal 19.6% of the population and over age 65 is 23.6% of the population. The median household income is $30,902, per capita income is $21,270. There are a total of 1,232 housing units with 50.6% owner occupied. Education includes 47.7% of residents that are high school graduates and 10.2% with a bachelor's degree or higher. The average temperature in Brinkley in the summer is 79 degrees, and in the winter 37 degrees.