Mount Olive Real EstateMount Olive is located in Illinois. Mount Olive, Illinois has a population of 2,017. Mount Olive is less family-centric than the surrounding county with 25.71% of the households containing married families with children. The county average for households married with children is 29.19%. The median household income in Mount Olive, Illinois is $51,815. The median household income for the surrounding county is $53,890 compared to the national median of $57,652. The median age of people living in Mount Olive is 37.1 years. Mount Olive WeatherThe average high temperature in July is 87 degrees, with an average low temperature in January of 19.7 degrees. The average rainfall is approximately 40 inches per year, with 17.1 inches of snow per year. Mount Olive MapReal estate near Mount OliveNearby CitiesNearby Cities Homes for Sale |