Bertha is located in Todd county Minnesota with a geographic area of 1.1 square miles. The total population in Bertha is 569 with 54.0% male and 46.0% female. Children under age 5 represent 7.6% of the population, under age 18 equal 35.9% of the population and over age 65 is 11.8% of the population. The median household income is $51,346, per capita income is $19,457. There are a total of 204 housing units with 74.5% owner occupied. Education includes 27.5% of residents that are high school graduates and 25.0% with a bachelor's degree or higher. The average temperature in Bertha in the summer is 66 degrees, and in the winter 9 degrees.