Merrillville, Indiana Map and Directory

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According to the United States Census Bureau, Merrillville is a Town that is located in Lake County, Indiana at 41.48 degrees North and 87.33 degrees West. The town's time zone is America/Chicago, and the town's primary telephone area code is 219. The land area of Merrillville is about 33.21 square miles, whereas the water area of the town is about 0.04 square miles. Lake County's land area is about 499 square miles, so the town occupies about 6.7 percent of the county's total land area.

The Census Bureau estimates that Merrillville had about 34,792 residents in 2019, which is approximately 1,048 people per square mile of land area.

According to recent American Community Survey data, the median household income in Merrillville was about $60,803 per year.

The Indiana counties map at upper right shows Lake County, highlighted in red. Use the menu below to display interactive maps of Merrillville, either in a frame on this page or in full-screen mode.

Use the menu below to display categorized Merrillville directories.