Fox River Grove is a village in Algonquin Township, McHenry County and Cuba Township, Lake County, Illinois, United States. The population was 4,854 at the 2010 census.
Fox River Grove is located primarily in McHenry County and partially in Lake County, Illinois, along U.S. Route 14, 42 miles (68 km) northwest of downtown Chicago. It is situated on the south bank of the Fox River, which flows southwest to the Illinois River. The village of Cary is located on the north side of the river, connected to Fox River Grove by a bridge on Route 14.
According to the 2010 census, Fox River Grove has a total area of 1.78 square miles (4.61 km), all land.
As of the census of 2000, there were 4,862 people, 1,677 households, and 1,294 families residing in the village. The population density was 2,929.6 people per square mile (1,130.9/km). There were 1,734 housing units at an average density of 1,044.8 per square mile (403.3/km). The racial makeup of the village was 95.91% White, 0.68% African American, 0.12% Native American, 1.28% Asian, 1.13% from other races, and 0.88% from two or more races. Hispanic or Latino of any race were 3.83% of the population.
There were 1,677 households out of which 45.3% had children under the age of 18 living with them, 65.7% were married couples living together, 8.3% had a female householder with no husband present, and 22.8% were non-families. 17.7% of all households were made up of individuals and 4.9% had someone living alone who was 65 years of age or older. The average household size was 2.90 and the average family size was 3.34.
In the village, the population was spread out with 31.7% under the age of 18, 6.1% from 18 to 24, 35.0% from 25 to 44, 20.4% from 45 to 64, and 6.9% who were 65 years of age or older. The median age was 35 years. For every 100 females, there were 104.5 males. For every 100 females age 18 and over, there were 100.9 males.
The median income for a household in the village was $66,469, and the median income for a family was $78,847. Males had a median income of $59,306 versus $28,643 for females. The per capita income for the village was $28,870. About 5.2% of families and 7.1% of the population were below the poverty line, including 10.6% of those under age 18 and 8.6% of those age 65 or over.