Mark is a village in Putnam County, Illinois, United States.
The St. Paul Coal Company opened a shaft and founded the village in 1903.
The mine was sold to Prairie State Coal in 1928 and remained in operation until 1940.
[3] According to the 2010 census, the village has a total area of 1.13 square miles (2.9 km2), all land.
25.0% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.