Lincolnshire is a village in Vernon Township, Lake County, in the U.S. state of Illinois. The village is a northern suburb of Chicago. Per the 2020 census, the population was 7,940. Lincolnshire was incorporated on August 5, 1957, from the unincorporated Half Day area when land was purchased to build a residential subdivision. The community underwent an aggressive era of expansion from 1983 to the 1990s. The Des Plaines River bisects the village, passing from north to south; Illinois Route 22 also divides the village into two parts, crossing the village from east to west. Lincolnshire is home to the award-winning public Adlai E. Stevenson High School, as well as Laura B. Sprague and Half Day elementary schools and Daniel Wright Junior High School which compose Lincolnshire-Prairie View School District 103. Many global corporations are located in Lincolnshire, including Aon Hewitt, Zebra Technologies, CDW, and Sysmex, generating a daytime population of over 20,000 people. The Village of Lincolnshire and other entities host several popular annual events, including Fourth of July celebration, Art Festival, Heroes Night, and Boo Bash. The Village maintains a Police Department that closely collaborates with its local school districts. Lincolnshire manages a public works system at the direct expense of the village; it retrieves all of its water from the city of Highland Park, which derives its water from adjacent Lake Michigan. The village has a council–manager government and is a home-rule municipality. The mayor of Lincolnshire is Elizabeth J. Brandt. History Prior to incorporation The first inhabitants of what would become the village of Lincolnshire were Native American Potawatomi migrants from Canada and Wisconsin. The tribesmen left these northern places in the 16th century in search of a warmer, more temperate climate. The first Europeans to visit the area were the French Jesuit explorers Father Jacques Marquette and Louis Jolliet. Shortly after arriving in 1673 at the site of what later became Waukegan, they sailed down the Des Plaines River and made contact with the local Potawatomi, who would dominate the area by 1768. One of the Potawatomi villages that they encountered stretched along the west bank of the Des Plaines River, from what later became Illinois Route 22 south to Aptakisic Road, the first real settlement in the Lincolnshire and Half Day region. The Lincolnshire area was originally a part of the town of Half Day, the first region settled by non-Native American peoples in