Carthage 62321 Real EstateCarthage is located in Illinois. Carthage, Illinois 62321has a population of 2,447. Carthage 62321 is more family-centric than the surrounding county with 28.44% of the households containing married families with children. The county average for households married with children is 26.02%. The median household income in Carthage, Illinois 62321 is $48,750. The median household income for the surrounding county is $51,460 compared to the national median of $57,652. The median age of people living in Carthage 62321 is 46.3 years. Carthage WeatherThe average high temperature in July is 86.8 degrees, with an average low temperature in January of 16.4 degrees. The average rainfall is approximately 39.2 inches per year, with 19.9 inches of snow per year. Carthage MapReal estate near CarthageNearby CitiesNearby Cities Homes for Sale |