Merrillville, Indiana is a city with a diverse population. The map below shows the diversity in the city, with areas in green representing more diverse neighborhoods and areas in red representing less diverse neighborhoods. Diversity in this context means a mix of people of different races and ethnicities living close to each other. For example, all-black or all-white neighborhoods would be considered to lack diversity. According to the most recent census data, 26% of Merrillville's population is black.
This makes it a great starting point for research into the racial diversity of Indiana.