From a total population of 25,300, Eureka has a median age of 35.8. The average age of males, in Eureka, is 34.2 while the average age of females is 38. When you compare this to median age of California, Eureka is 0.2 years older.
The median income of individuals, in Eureka, is $21,151 while the average household income is $38,007. When comparing the median income of people living in Eureka to the rest of California, the average income in Eureka is $8,755 less.