Bloomfield is an unincorporated community and census-designated place in Ellington and Mendon Townships, Adams County, Illinois, United States.

Bloomfield is located on Illinois Route 336 about 9 miles (14 km) north of Quincy.

As of the 2020 census[6] there were 32 people, 18 households, and 18 families residing in the CDP.

There were 14 housing units at an average density of 26.67 per square mile (10.30/km2).

This Adams County, Illinois location article is a stub.