From a total population of 11,613, Grafton has a median age of 40.7. The average age of males, in Grafton, is 39.4 while the average age of females is 42.6. When you compare this to median age of Wisconsin, Grafton is 1.9 years older.
The median income of individuals, in Grafton, is $33,483 while the average household income is $61,887. When comparing the median income of people living in Grafton to the rest of Wisconsin, the average income in Grafton is $5,576 more.