Winthrop is located in Little river county Arkansas with a geographic area of 1.0 square miles. The total population in Winthrop is 156 with 40.4% male and 59.6% female. Children under age 5 represent 7.7% of the population, under age 18 equal 33.3% of the population and over age 65 is 16.7% of the population. The median household income is $25,000, per capita income is $15,059. There are a total of 54 housing units with 75.9% owner occupied. Education includes 46.3% of residents that are high school graduates and 9.3% with a bachelor's degree or higher. The average temperature in Winthrop in the summer is 78 degrees, and in the winter 37 degrees.