Willis is located in Michigan. Willis, Michigan 48191has a population of 4,169. Willis 48191 is less family-centric than the surrounding county with 24% households with children. The county percentage for households with children is 24%.
The median household income in Willis, Michigan 48191 is $79,468. The median household income for the surrounding county is $77,109 compared to the national median of $66,222. The median age of people living in Willis 48191 is 42.4 years.
The average high temperature in July is 83.4 degrees, with an average low temperature in January of 15 degrees. The annual precipitation is 30.42.