Primghar is located in O'brien county Iowa with a geographic area of 1.3 square miles. The total population in Primghar is 1,030 with 52.2% male and 47.8% female. Children under age 5 represent 7.6% of the population, under age 18 equal 31.7% of the population and over age 65 is 15.5% of the population. The median household income is $55,500, per capita income is $28,873. There are a total of 408 housing units with 78.4% owner occupied. Education includes 25.7% of residents that are high school graduates and 24.8% with a bachelor's degree or higher. The average temperature in Primghar in the summer is 71 degrees, and in the winter 23 degrees.