Mount Olive is located in Illinois. Mount Olive, Illinois has population of 1,949. Mount Olive is less family-centric than the surrounding county with 25% of the households with children.
The median household income in Mount Olive, Illinois is $58,953. The median household income for the surrounding county is $56,452 compared to the national median of $66,222. The median age of people living in Mount Olive is 42.5 years.
The average high temperature in July is 89.52 degrees, with an average low temperature in January of 19.81 degrees. The annual precipitation is 38.73.