Merrionette Park is a village in Cook County, Illinois, United States. The population was 1,900 as of the 2010 census.
Merrionette Park is located at 41°41′N 87°42′W (41.684, -87.701).
According to the 2010 census, Merrionette Park has a total area of 0.38 square miles (0.98 km2), all land.
As of the census of 2000, there were 1,999 people, 957 households, and 492 families living in the village. The population density was 5,309.3 people per square mile (2,031.1/km2). There were 988 housing units at an average density of 2,624.1 per square mile (1,003.9/km2). The racial makeup of the village was 90.30% White, 6.60% African American, 0.05% Native American, 0.50% Asian, 1.15% from other races, and 1.40% from two or more races. Hispanic or Latino of any race were 4.15% of the population.
The top three ancestries reported in Merrionette Park as of the 2000 census were Irish (34.5%), German (23.8%) and Polish (17.2%).
There were 957 households, out of which 22.7% had children under the age of 18 living with them, 36.6% were married couples living together, 10.8% had a female householder with no husband present, and 48.5% were non-families. 43.6% of all households were made up of individuals, and 20.3% had someone living alone who was 65 years of age or older. The average household size was 2.09 and the average family size was 2.97.
In the village, the population was spread out, with 22.0% under the age of 18, 7.4% from 18 to 24, 30.5% from 25 to 44, 20.8% from 45 to 64, and 19.4% who were 65 years of age or older.