River Grove is a village in Cook County, Illinois, United States. The population was 10,612 at the 2020 census. Geography River Grove is located at (41.925830, -87.840135). According to the 2010 census, River Grove has a total area of , all land. History Just as nearby Elmwood Park and Oak Park are named after their historic elm and oak trees, River Grove gets its two-part name first from the community's shallow, muddy Des Plaines River, and second from the majestic groves of American ash trees lining shore of the river's "bottomland." Credit goes to the village's early German and Nordic settlers who, already holding a great reverence for the "mystic ash" through old world traditions, felt that they were home again among the familiar groves of ash trees, "just like the ones they left behind." Up until the modern day extinction event of the American ash tree species 2006–2018, River Grove was the home to Cook County's second-oldest green ash with an estimated age of 240 in the "old growth" Lafrombose Woods, along with several other living examples of locally evolved white, green, black and blue ash types 110–160 years of age scattered around the village. Because the invasive Asian emerald ash borer kills off young trees long before they reach seeding age of 10, scientists theorize that the "Fraxinus/ash" species will no longer be able to germinate continued generations by 2018 within the local woods, or only 12 years after EAB was first discovered in River Grove. James Kirie (1911-2000), businessman and Illinois state representative, was born in River Grove. Demographics As of the 2020 census there were 10,612 people, 3,642 households, and 2,467 families residing in the village. The population density was . There were 4,482 housing units at an average density of . The racial makeup of the village was 68.33% White, 2.21% African American, 1.04% Native American, 2.25% Asian, 0.01% Pacific Islander, 14.64% from other races, and 11.52% from two or more races. Hispanic or Latino of any race were 31.54% of the population. There were 3,642 households, out of which 57.39% had children under the age of 18 living with them, 50.11% were married couples living together, 14.11% had a female householder with no husband present, and 32.26% were non-families. 30.53% of all households were made up of individuals, and 13.51% had someone living alone who was 65 years of age or older. The average