Coatsburg is a village in Adams County, Illinois, United States.

A post office called Coatsburgh was established in 1856, and the name was changed to Coatsburg in 1893.

[5] According to the 2021 census gazetteer files, Coatsburg has a total area of 0.13 square miles (0.34 km2), all land.

There were 79 housing units at an average density of 598.48 per square mile (231.07/km2).

26.25% of all households were made up of individuals, and 15.00% had someone living alone who was 65 years of age or older.