Mount Clare is a village in Macoupin County, Illinois, United States.

[2] Mount Clare is located in southeastern Macoupin County at 39°5′59″N 89°49′19″W / 39.09972°N 89.82194°W / 39.09972; -89.82194 (39.099811, -89.821915).

[3] It is bordered to the east by the city of Benld, and Gillespie is 2 miles (3 km) to the north.

[1] The village is drained by the headwaters of Big Branch, a south-flowing tributary of Cahokia Creek, which runs to the Mississippi River northeast of St. Louis.

28.1% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older.