Lincolnshire is a village in Vernon Township, Lake County, in the U.S. state of Illinois. The village is a northern suburb of Chicago. The population of Lincolnshire was 7,275 at the 2010 census. 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 located at 42°11′47″ North and 87°55′2″ West, and shares a border with the villages of Vernon Hills to the northwest, Buffalo Grove to the southwest, Bannockburn to the east, and Riverwoods to the southeast. The city of Lake Forest is located to the northeast of the village, while the unincorporated community of Prairie View borders the village directly to the west.
According to the 2010 census, Lincolnshire has a total area of 4.674 square miles (12.11 km), of which 4.58 square miles (11.86 km) (or 97.99%) is land and 0.094 square miles (0.24 km) (or 2.01%) is water.
The village of Lincolnshire is a suburb of the city of Chicago in the southern reaches of Lake County; like Chicago, Lincolnshire is located in the extreme northeastern region of the state of Illinois. The Des Plaines River meanders through the eastern part of the village, dividing the town in half vertically at the village hall, while Half Day Road (Illinois Route 22) splits the village in half in an east–west direction. Milwaukee Avenue (U.S. Route 45) runs in a north–south direction through Lincolnshire, into the village of Buffalo Grove to the south and Vernon Hills to the north.
Lincolnshire has been a Tree City USA every year since 1988. It has won the Tree City Growth Award for thirteen consecutive years. To maintain Lincolnshire’s foliage, the village passed the “Tree Preservation Ordinance”, a law that places tight restrictions on tree removal. As of 2008, the village was working towards the eradication of gypsy moths in its area.
Lincolnshire lies on the border of two Chicago-area watersheds: one pertaining to the Des Plaines River, and the other involving the nearby north fork of the Chicago River. This situation directly relates to the presence of the Des Plaines River in the village.
As of the census of 2010, there were 7,275 people living in the village. The racial makeup of the village was 91.5% White, 0.9% African American, 0.01% Native American, 6.1% Asian, 0.3% from other races, and 1.2% from two or more races. Hispanic or Latino of any race were 2% of the population.
As of the census of 2000, there were 6,108 people, 2,134 households, and 1,796 families living in the village. The population density was 1,386.2 people per square mile (534.8/km²). There were 2,177 housing units at an average density of 494.1 per square mile (190.6/km²). The racial makeup of the village was 94.1% White, 0.5% African American, 0.1% Native American, 3.7% Asian, 0.1% Pacific Islander, 0.5% from other races, and 1.1% from two or more races. Hispanic or Latino of any race were 2.5% of the population.
There were 2,134 households out of which 37.4% had children under the age of 18 living with them, 79.1% were married couples living together, 3.7% had a female householder with no husband present, and 15.8% were non-families. 13.3% of all households were made up of individuals and 5.6% had someone living alone who was 65 years of age or older. The average household size was 2.75 and the average family size was 3.03.
In the village, the population was spread out with 26.9% under the age of 18, 3.0% from 18 to 24, 21.3% from 25 to 44, 32.6% from 45 to 64, and 16.2% who were 65 years of age or older. The median age was 44 years. For every 100 females, there were 94.8 males. For every 100 females age 18 and over, there were 93.2 males.
The median income for a household in the village was $134,259, and the median income for a family was $150,598. Males had a median income of approximately $90,000 versus $46,328 for females. The per capita income for the village was $60,115. About 0.7% of families and 1.6% of the population were below the poverty line, including 1.1% of those under age 18 and 0.7% of those age 65 or over.