Wentworth is located in Lake county South dakota with a geographic area of 0.3 square miles. The total population in Wentworth is 153 with 58.8% male and 41.2% female. Children under age 5 represent 3.3% of the population, under age 18 equal 10.5% of the population and over age 65 is 30.1% of the population. The median household income is $57,938, per capita income is $29,254. There are a total of 73 housing units with 83.6% owner occupied. Education includes 38.4% of residents that are high school graduates and 21.9% with a bachelor's degree or higher. The average temperature in Wentworth in the summer is 70 degrees, and in the winter 15 degrees.