Lake Catherine, Illinois
|Area||1.5 sq mi (4 km2)|
|- land||1.1 sq mi (3 km2)|
|- water||0.5 sq mi (1 km2)|
|Density||919/sq mi (355/km2)|
|- summer (DST)||CDT (UTC-5)|
|Wikimedia Commons: Lake Catherine, Illinois|
Lake Catherine is located at (42.483969, -88.124172).
According to the United States Census Bureau, the CDP has a total area of 1.5 square miles (3.9 km2), of which 1.1 square miles (2.8 km2) is land and 0.5 square miles (1.3 km2) (30.97%) is water.
At the 2000 census, there were 1,490 people, 594 households and 418 families residing in the CDP. The population density was 1,400.3 per square mile (542.7/km²). There were 733 housing units at an average density of 688.9/sq mi (267.0/km²). The racial makeup of the CDP was 97.72% White, 0.81% African American, 0.07% Native American, 0.34% from other races, and 1.07% from two or more races. Hispanic or Latino of any race were 2.28% of the population.
There were 594 households of which 29.1% had children under the age of 18 living with them, 56.2% were married couples living together, 9.3% had a female householder with no husband present, and 29.5% were non-families. 25.6% of all households were made up of individuals and 7.9% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 3.00.
23.1% of the population were under the age of 18, 6.7% from 18 to 24, 30.1% from 25 to 44, 27.2% from 45 to 64, and 12.8% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 106.4 males. For every 100 females age 18 and over, there were 106.5 males.
The median household income was $56,970 and the median family income was $61,607. Males had a median income of $47,000 and females $35,076. The per capita income was $23,401. About 7.6% of families and 8.5% of the population were below the poverty line, including 5.5% of those under age 18 and 6.4% of those age 65 or over.