Fun Facts and Stats About Names Dog names, cat names, and humans too: Facts and Stats about the last name Riis Life expectancy, age, gender, popularity, net worth, social media, biography, and more!about the data Did you know that most people with the surname Riis are born on a Thursday? People with last name Riis are commonly of great health and do not require expensive life insurance but should learn about Medicare eligibility. And here is why: The average life expectancy of people named Riis in the United States recorded since 1880 is: 75.5 years 136 deaths of humans with the surname Riis have been recorded by the SSA since 1880. The average life expectancy for the lastname Riis is: 75.5 years The majority of people with the surname Riis are born in August and die in September born dead Most person with the the family name riis live in the state of New York. 21.3% live in New York 20.6% live in Illinois 13.2% live in California If you don't like people called riis you should probably move to Maine (None live there). Fun fact: Montana is the state with the most last name riis per capita. Check out the popularity of the last name riis for each state in the map below. Do you have more info on the ancestry, history, family tree, or heritage of Riis ? Do you know the meaning of the name Riis ? Share it with friends to start a fun discussion! Facebook Twitter Reddit Is the name riis only for humans? Apparently so ¯\_(ツ)_/¯ We don't know of any cats or dogs named riis Compare the last name Riis to other random last names: Alsup Bernadas Zakaria Siddique