Lincolnshire is a village in Vernon Township, Lake County, in the U.S. state of Illinois. The village is a northern suburb of Chicago. 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 public Adlai E. Stevenson High School and to the schools that compose the elementary Lincolnshire-Prairie View School District 103. It serves as the headquarters for corporations including the global outsourcing company Aon Hewitt, and was the base of operations for the Newman/Haas Racing team. The village of Lincolnshire hosts several annual festivals (including one mirroring the Taste of Chicago) in either commercial establishments such as City Park or the Village Green, or in one of its nine public parks. 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.
Lincolnshire serves as the headquarters of Van Vlissingen & Company, a commercial real estate developer, the global outsourcing Aon Hewitt company and the stationery products manufacturers Quill and ACCO Brands. Newman/Haas Racing, an auto racing team in the Indy Racing League, is based in the village. The Marriott Theatre is located in Lincolnshire, on the premises of the Marriott Lincolnshire Resort; it sells approximately 400,000 tickets each year. The Half Day Road-Milwaukee Avenue area, which is located near the Lincolnshire-Vernon Hills border, is a major retail corridor that experiences heavy traffic at peak hours. Along with the Village Green area, this could loosely be considered Downtown Lincolnshire. Lincolnshire and several of its neighboring villages have collaborated in attempts to ease the traffic in the area. Another potential “downtown” is loosely centered on the intersection of Milwaukee Avenue and Aptakisic Road; City Park, the Lincolnshire Commons, and the Lincolnshire Corporate Center constitute a retail hub in the southern end of Lincolnshire. Village Green plaza, at the intersection of Illinois Route 22 and Milwaukee Avenue, is the location for many of the festivities that the village holds.