Fun Facts and Stats About Names Dog names, cat names, and humans too: Facts and Stats about the last name Siefken Life expectancy, age, gender, popularity, net worth, social media, biography, and more!about the data Did you know that most people with the surname Siefken are born on a Saturday? People with last name Siefken are usually of exceptional health and do not require expensive health insurance but should learn about Medicare eligibility. And here is why: The average life expectancy of people named Siefken in the United States recorded since 1880 is: 76.1 years 270 deaths of humans with the family name Siefken have been recorded by the SSA since 1880. The average life expectancy for the lastname Siefken is: 76.1 years The majority of people with the last name Siefken are born in August and die in January born dead Most person with the the last name siefken live in the state of Iowa. 35.7% live in Iowa 10.3% live in Nebraska 9.5% live in Illinois If you don't like people called siefken you should probably go to New Hampshire (None live there). Fun fact: Iowa is the state with the most last name siefken per capita. Check out the popularity of the last name siefken for each state in the map below. Do you have more info on the ancestry, history, family tree, or heritage of Siefken ? Do you know the meaning of the name Siefken ? Share it with friends to start a fun discussion! Facebook Twitter Reddit Is the name siefken only for humans? Apparently so ¯\_(ツ)_/¯ We don't know of any cats or dogs named siefken Compare the last name Siefken to other random last names: Corwin Fredrick Wentworth Debeer