Northfield is a village in Cook County, Illinois, United States, located approximately north of downtown Chicago. As of the 2020 census, the village's population was 5,751. It is part of a collection of upscale residential communities north of Chicago that belong to New Trier and Northfield Townships and the greater North Shore.
Geography
Northfield is located in Northfield Township, Cook County at 42°6'N 87°46'W (42.10,-87.77).
According to the 2021 census gazetteer files, Northfield has a total area of , all land.