Mt Carroll is located in Illinois. Mt Carroll, Illinois has a population of 737.
The median household income in Mt Carroll, Illinois is $42,404. The median household income for the surrounding county is $50,555 compared to the national median of $57,652. The median age of people living in Mt Carroll is 51.9 years.
The average high temperature in July is 84.6 degrees, with an average low temperature in January of 11.7 degrees. The average rainfall is approximately 37.1 inches per year, with 30.4 inches of snow per year.