Elgin Community College (ECC) is a public community college in Elgin, Illinois. It was founded in 1949 as part of Elgin Area School District U46. Community College District 509 was formed 17 years later in 1966, a year after Illinois legislators created the Illinois Community College System. Most of the District is in Kane County with portions in DeKalb, Cook, McHenry, and DuPage. The 360-square-mile (930 km2) District serves 300,000 people, 11,000 businesses, four public school districts, and 15 high schools.

Elgin is a city in Cook and Kane counties in the U.S. state of Illinois. It is located 35 mi (56 km) northwest of Chicago along the Fox River. As of the 2020 census, the city had a population of 114,797, making it the sixth-most populous city in the state.