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  north of Quincy.

Bloomfield was platted ca. 1837.

Geography 
Bloomfield is located at . According to the 2021 census gazetteer files, Bloomfield has a total area of , of which  (or 99.05%) is land and  (or 0.95%) is water.

Demographics
As of the 2020 census there were 32 people, 18 households, and 18 families residing in the CDP. The population density was . There were 14 housing units at an average density of . The racial makeup of the CDP was 96.88% White, and 3.13% from other races.

References

Unincorporated communities in Adams County, Illinois
Unincorporated communities in Illinois