From a total population of 29,740, Montgomery County has a median age of 41.6. The average age of males, in Montgomery County, is 39.1 while the average age of females is 45.2. When you compare this to median age of Illinois, Montgomery County is 4.6 years older.
The median income of individuals, in Montgomery County, is $20,067 while the average household income is $45,158. When comparing the median income of people living in Montgomery County to the rest of Illinois, the average income in Montgomery County is $9,952 less.