From a total population of 3,895, Marshall has a median age of 40.4. The average age of males, in Marshall, is 41.6 while the average age of females is 40.3. When you compare this to median age of Illinois, Marshall is 3.4 years older.
The median income of individuals, in Marshall, is $24,046 while the average household income is $49,231. When comparing the median income of people living in Marshall to the rest of Illinois, the average income in Marshall is $5,973 less.