Grafton is located in Wisconsin. Grafton, Wisconsin has a population of 18,202. Grafton is more family-centric than the surrounding county with 31% households with children. The county percentage for households with children is 28%.
The median household income in Grafton, Wisconsin is $79,237. The median household income for the surrounding county is $83,167 compared to the national median of $61,963. The median age of people living in Grafton is 44.6 years.
The average high temperature in July is 78 degrees, with an average low temperature in January of 13.2 degrees. The annual precipitation is 32.08.