This is a list of unincorporated communities in Illinois, arranged in alphabetical order:
Kane County is a county in the U.S. state of Illinois. According to the 2020 census, it has a population of 516,522, making it the fifth-most populous county in Illinois. Its county seat is Geneva, and its largest city is Aurora. Kane County is one of the collar counties of the metropolitan statistical area designated "Chicago–Naperville–Elgin, IL–IN–WI" by the US census.
Plato Township is one of sixteen townships in Kane County, Illinois, USA. As of the 2010 census, its population was 6,166 and it contained 2,182 housing units. It was originally named Homer Township; the name was changed to Plato on July 2, 1850.
Barrington Township is one of 29 townships in Cook County, Illinois, USA. As of the 2020 census, its population was 16,514 and it contained 6,172 housing units. The northwestern corner of the Cook County panhandle, it is the county's northwesternmost township. It is also by far the least densely populated township in the county, with less than half the population density of the next least Lemont Township.
Pilot Township is one of seventeen townships in Kankakee County, Illinois, USA. As of the 2010 census, its population was 2,086 and it contained 859 housing units. It was formed from a portion of Salina Township on March 11, 1857.
Downers Grove Township is one of nine townships in DuPage County, Illinois, US. As of the 2020 census, its population was 149,921 and it contained 61,933 housing units. It is the largest township in the county, both in terms of area and population.
Milton Township is one of nine townships in DuPage County, Illinois, USA. As of the 2020 census, its population was 120,237 and it contained 46,254 housing units.
Naperville Township is one of nine townships in DuPage County, Illinois, USA. As of the 2020 census, its population was 104,765 and it contained 41,338 housing units.
Winfield Township is one of nine townships in DuPage County, Illinois, USA. As of the 2020 census, its population was 45,836 and it contained 16,445 housing units. It is the least populous of the DuPage County Townships.
York Township is one of nine townships in DuPage County, Illinois, USA. As of the 2020 census, its population was 128,425 and it contained 53,543 housing units.
Dodds Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 2,647 and it contained 1,163 housing units.
Elk Prairie Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 725 and it contained 350 housing units.
Grand Prairie Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 909 and it contained 391 housing units.
McClellan Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 1,255 and it contained 534 housing units.
Rome Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 1,669 and it contained 771 housing units.
Shiloh Township is one of sixteen townships in Jefferson County, Illinois, USA. As of the 2010 census, its population was 6,620 and it contained 3,204 housing units.
Murphysboro Township is one of sixteen townships in Jackson County, Illinois, USA. As of the 2010 census, its population was 10,563 and it contained 5,174 housing units.
Salt Creek Township is one of eleven townships in Monroe County, Indiana, United States. As of the 2010 census, its population was 1,513 and it contained 822 housing units.