Clam lake is located in Ashland county Wisconsin with a geographic area of 0.4 square miles. The total population in Clam lake is 17 with 58.8% male and 41.2% female. Children under age 5 represent 0.0% of the population, under age 18 equal 0.0% of the population and over age 65 is 76.5% of the population. The median household income is $71,250, per capita income is $39,988. There are a total of 10 housing units with 100.0% owner occupied. Education includes 10.0% of residents that are high school graduates and 20.0% with a bachelor's degree or higher. The average temperature in Clam lake in the summer is 66 degrees, and in the winter 17 degrees.