Mckenney is located in Dinwiddie county Virginia with a geographic area of 0.9 square miles. The total population in Mckenney is 557 with 50.3% male and 49.7% female. Children under age 5 represent 3.8% of the population, under age 18 equal 19.4% of the population and over age 65 is 18.9% of the population. The median household income is $45,833, per capita income is $20,612. There are a total of 216 housing units with 67.6% owner occupied. Education includes 29.6% of residents that are high school graduates and 13.9% with a bachelor's degree or higher. The average temperature in Mckenney in the summer is 71 degrees, and in the winter 35 degrees.