Antioch is a village in Antioch Township, Lake County, Illinois, United States. The population was 14,430 at the 2010 census.
Antioch is located nearly halfway between Chicago and Milwaukee at 42°28′45″N 88°5′27″W / 42.47917°N 88.09083°W / 42.47917; -88.09083 (42.479069, -88.090878).
According to the 2010 census, Antioch has a total area of 8.595 square miles (22.26 km), of which 8.21 square miles (21.26 km) (or 95.52%) is land and 0.385 square miles (1.00 km) (or 4.48%) is water.
The village lies in a gently rolling moraine landscape, dominated by lakes of glacial origin. Among these are the Antioch Lake, located south of the village center, Lake Marie, located west of the village center and the Redwing Slough Lake, located east of the village center. There are several smaller lakes and ponds, along with a complement of wetlands.
As of the 2010 United States Census, there were 14,430 people residing in the village. The racial makeup of the village was 88.79% White, 3.08% Black or African American, 3.73% Asian, 0.17% Native American, 0.10% Pacific Islander, 2.04% of some other race and 2.09% of two or more races. 8.53% were Hispanic or Latino (of any race).
As of the census of 2000, there were 8,788 people, 3,235 households, and 2,351 families residing in the village. The population density was 1,190.4 people per square mile (459.8/km²). There were 3,346 housing units at an average density of 453.2 per square mile (175.1/km²). The racial makeup of the village was 95.19% White, 1.07% African American, 0.35% Native American, 1.16% Asian, 0.01% Pacific Islander, 1.08% from other races, and 1.14% from two or more races. Hispanic or Latino of any race were 4.42% of the population.
There were 3,235 households out of which 41.9% had children under the age of 18 living with them, 56.4% were married couples living together, 12.2% had a female householder with no husband present, and 27.3% were non-families. 22.2% 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 2.72 and the average family size was 3.20.
In the village, the population was spread out with 29.9% under the age of 18, 8.0% from 18 to 24, 32.4% from 25 to 44, 21.1% from 45 to 64, and 8.5% who were 65 years of age or older. The median age was 34 years. For every 100 females, there were 95.5 males. For every 100 females age 18 and over, there were 88.9 males.
The median income for a household in the village was $56,481, and the median income for a family was $66,589. Males had a median income of $51,503 versus $31,389 for females. The per capita income for the village was $25,711. About 2.3% of families and 3.9% of the population were below the poverty line, including 3.9% of those under age 18 and 8.0% of those age 65 or over.