Merrillville is a town in Ross Township, Lake County, Indiana, United States. The population was 35,246 at the 2010 census. Merrillville is in east-central Lake County, in the Chicago metropolitan area. On January 1, 2015, Merrillville became the most populated town in Indiana, as Fishers in Hamilton County was converted from a town to a city. The town serves as a major shopping hub for Northwest Indiana. Geography Merrillville is located at . According to the 2010 census, Merrillville has a total area of , of which (or 99.88%) is land and (or 0.12%) is water. The town is centered on the intersection of U.S. Route 30 and Interstate 65. The Lincoln Highway runs through Merrillville. The original alignment of Lincoln Highway is known as 73rd Avenue (also called Old Lincoln Highway) in Merrillville, while the current Lincoln Highway (US 30) is known as 81st Avenue. State Road 53 (Broadway) and State Road 55 (Taft Street) traverse the town from north to south. Merrillville's asymmetric shape results in numerous boundaries with other municipalities. It is bordered by Gary and unincorporated Calumet Township, Lake County, to the north; Hobart to the northeast; Union Township, Porter County, to the east; Winfield and Crown Point to the south; Schererville to the west; and Griffith to the northwest. History Merrillville occupies what used to be woodland belonging to the Potawatomi Indians. In 1834, a clearing was created for ceremonial purposes and called McGwinn Village. A year later, a white man, Jeremiah Wiggins, settled in the place; McGwinn Village became Wiggins Point. Wiggins Point became a well-known stop for wagon trains heading to Joliet, Illinois along the Sauk Trail (also called the Sac Trail), an old Indian trail. At one time, 16 trails radiated outward from Wiggins Point. In 1838, Wiggins died. Sometime afterward, local settlers renamed the place Centerville. Later still, it was renamed Merrillville after the brothers Dudley and William Merrill. Dudley Merrill operated a hotel and store in Centerville, and his son John P. Merrill was a Township Trustee. Nearby, in the same former Potawatomi hunting grounds, other settlements had sprung up. Near Deep River creek was a settlement named Deep River; near Turkey Creek was another settlement with that creek's name. Others included Ainsworth, Lottaville, and Rexville. At one time, the post office for the area was named Lottaville. In 1848, all of these settlements, including Merrillville (that is, the old