From a total population of 11,278, Clayton has a median age of 46.4. The average age of males, in Clayton, is 46.3 while the average age of females is 46.5. When you compare this to median age of California, Clayton is 10.8 years older.
The median income of individuals, in Clayton, is $54,740 while the average household income is $131,136. When comparing the median income of people living in Clayton to the rest of California, the average income in Clayton is $24,834 more.