From a total population of 21,397, South El Monte has a median age of 32.6. The average age of males, in South El Monte, is 31.8 while the average age of females is 33.2. When you compare this to median age of California, South El Monte is 3.0 years younger.
The median income of individuals, in South El Monte, is $14,926 while the average household income is $44,498. When comparing the median income of people living in South El Monte to the rest of California, the average income in South El Monte is $14,980 less.