From a total population of 3,019, Sierra County has a median age of 53.5. The average age of males, in Sierra County, is 53.4 while the average age of females is 53.6. When you compare this to median age of California, Sierra County is 17.9 years older.
The median income of individuals, in Sierra County, is $28,030 while the average household income is $43,107. When comparing the median income of people living in Sierra County to the rest of California, the average income in Sierra County is $1,876 less.