Merrillville is located in Indiana. Merrillville, Indiana has a population of 37,779. Merrillville is less family-centric than the surrounding county with 27% households with children. The county percentage for households with children is 29%.
The median household income in Merrillville, Indiana is $58,775. The median household income for the surrounding county is $55,613 compared to the national median of $61,963. The median age of people living in Merrillville is 38.3 years.
The average high temperature in July is 83.9 degrees, with an average low temperature in January of 13.9 degrees. The annual precipitation is 38.02.