Lineville is located in Wayne county Iowa with a geographic area of 0.9 square miles. The total population in Lineville is 261 with 49.4% male and 50.6% female. Children under age 5 represent 6.1% of the population, under age 18 equal 19.2% of the population and over age 65 is 11.5% of the population. The median household income is $51,250, per capita income is $27,006. There are a total of 129 housing units with 72.1% owner occupied. Education includes 48.8% of residents that are high school graduates and 17.8% with a bachelor's degree or higher. The average temperature in Lineville in the summer is 72 degrees, and in the winter 23 degrees.