From a total population of 525, Sierra County has a median age of 60.3. The average age of males, in Sierra County, is 57.4 while the average age of females is 60.9. When you compare this to median age of New Mexico, Sierra County is 23.5 years older.
The median income of individuals, in Sierra County, is $16,441 while the average household income is $25,673. When comparing the median income of people living in Sierra County to the rest of New Mexico, the average income in Sierra County is $7,507 less.