From a total population of 33,057, Merrillville has a median age of 36.4. The average age of males, in Merrillville, is 33.6 while the average age of females is 39.8. When you compare this to median age of Indiana, Merrillville is 0.8 years younger.
The median income of individuals, in Merrillville, is $22,729 while the average household income is $49,711. When comparing the median income of people living in Merrillville to the rest of Indiana, the average income in Merrillville is $2,224 less.