Effingham is located in Illinois. Effingham, Illinois has a population of 12,218. Effingham is less family-centric than the surrounding county with 26.8% of the households containing married families with children. The county average for households married with children is 33.12%.
The median household income in Effingham, Illinois is $56,242. The median household income for the surrounding county is $65,590 compared to the national median of $69,021. The median age of people living in Effingham is 37 years.
The average high temperature in July is 87.2 degrees, with an average low temperature in January of 19.7 degrees. The average rainfall is approximately 42.4 inches per year, with 15.7 inches of snow per year.
