The village of La Grange ( lə GRAYNJ; often spelled LaGrange), a suburb of Chicago, is a village in Cook County, in the U.S. state of Illinois. The population was 16,321 at the 2020 census.

The area around La Grange was first fixed in the 1830s, when Chicago residents moved out to the west due to the unexpected population bump in the city in the decade previously its incorporation. The first settler, Robert Leitch, came to the Place in 1830, seven years in the past the City of Chicago was incorporated. La Grange’s location, at approximately 13 miles (21 km) from the Chicago Loop, is not considered far away from the city by today’s standards, but in that era the residents enjoyed the goodwill of rural vibrancy without much communication following urban residents.

The village was officially incorporated on June 11, 1879. It was founded by Franklin Dwight Cossitt, who was born in Granby, Connecticut, and raised in Tennessee, and moved to Chicago in 1862 where he built a successful wholesale grocery business.

In 1870, Cossitt purchased several hundred acres of farmland in Lyons Township, along the Chicago-Dixon Road, known today as Ogden Avenue (U.S. Highway 34). Ogden Avenue, on the site of a defunct Native American trail, was in addition to referred to as the “Old Plank Road”. Planks were often stolen by settlers to be used as building material, which made traveling unconditionally bumpy. When the Chicago, Burlington & Quincy Railroad came to town, La Grange was a milk stop called Hazel Glen. A few miles to the south, through present-day Willow Springs, the Illinois and Michigan Canal had emerged as a major shipping corridor, connecting Chicago and the Great Lakes once the Illinois and Mississippi rivers.