Humboldt is located in Minnehaha county South dakota with a geographic area of 0.6 square miles. The total population in Humboldt is 676 with 43.6% male and 56.4% female. Children under age 5 represent 9.0% of the population, under age 18 equal 38.9% of the population and over age 65 is 11.8% of the population. The median household income is $71,000, per capita income is $24,442. There are a total of 222 housing units with 82.0% owner occupied. Education includes 35.1% of residents that are high school graduates and 22.5% with a bachelor's degree or higher. The average temperature in Humboldt in the summer is 70 degrees, and in the winter 15 degrees.