Joppa is located in Illinois. Joppa, Illinois has a population of 299. Joppa is more family-centric than the surrounding county with 36.71% of the households containing married families with children. The county average for households married with children is 31.84%.
The median household income in Joppa, Illinois is $28,750. The median household income for the surrounding county is $42,168 compared to the national median of $57,652. The median age of people living in Joppa is 36.8 years.
The average high temperature in July is 88.4 degrees, with an average low temperature in January of 24.2 degrees. The average rainfall is approximately 49.1 inches per year, with 9.1 inches of snow per year.