Oak Lawn is a village in Cook County, Illinois, United States. The population was 56,690 at the 2010 census.
Oak Lawn is located at 41°42′54″N 87°45′12″W / 41.71500°N 87.75333°W / 41.71500; -87.75333 (41.715082, −87.753401).
According to the 2010 census, Oak Lawn has a total area of 8.59 square miles (22.25 km), all land.
As of the 2010 United States Census, there were 56,690 people residing in the village. The racial makeup of the village was 85.2% White, 5.2% African American, 0.2% Native American, 2.2% Asian, 5.3% from other races, and 1.9% from two or more races. Hispanic or Latino people of any race were 14.3% of the population
As of the 2000 United States Census, there were 55,245 people, 22,220 households, and 14,554 families residing in the village. The population density was 6,427.3 people per square mile (2,480.3/km²). There were 22,846 housing units, at an average density of 2,657.9 per square mile (1,025.7/km²). The racial makeup of the village was 93.35% White, 1.22% African American, 0.17% Native American, 1.73% Asian, 0.01% Pacific Islander, 1.64% from other races, and 1.90% from two or more races. Hispanic or Latino people of any race were 5.33% of the population, including 4.3% of Mexican descent.
The top five ancestries reported in Oak Lawn as of the 2000 census were Irish (30.4%), German (19.5%), Polish (19.3%), Italian (9.7%) and English (4.4%). One of the streets in the village pays tribute to its Polish American heritage through its name Deblin Lane, after Dęblin, Poland.
There were 22,220 households, of which 25.8% had children under the age of 18 living with them, 52.0% were married couples living together, 10.1% had a female householder with no husband present, and 34.5% were non-families. Individuals made up 30.9% of all households, and someone living alone who was 65 years of age or older comprised 17.0%. The average household size was 2.46, and the average family size was 3.14.
In the village, 21.9% of the population were under the age of 18, 7.2% were aged 18 to 24, 26.2% aged 25 to 44, 22.9% aged 45 to 64, and 21.7% aged 65 or older. The median age was 42 years. For every 100 females, there were 88.3 males. For every 100 females age 18 and over, there were 84.2 males.
The median income for a household in the village was $56,185, and the median income for a family was $71,413. Males had a median income of $53,782, versus $41,904 for females. The per capita income for the village was $27,230. About 3.9% of families and 5.4% of the population were below the poverty line, including 6.7% of those under age 18 and 4.6% of those aged 65 or over.
Oak Lawn Illinois neighborhoods include: Acorn Glen, Cloister, Homestead, Kenneth Ave, Lawn Manor Park, Luciano Dominguez, Northwest Kolmar, Oak Center, Oak Lawn, W 87th-W 91st