Otterville is located in Illinois. Otterville, Illinois has a population of 113. Otterville is less family-centric than the surrounding county with 4.88% of the households containing married families with children. The county average for households married with children is 29.77%.
The median household income in Otterville, Illinois is $21,250. The median household income for the surrounding county is $56,320 compared to the national median of $57,652. The median age of people living in Otterville is 42.8 years.
The average high temperature in July is 87.7 degrees, with an average low temperature in January of 20 degrees. The average rainfall is approximately 40.8 inches per year, with 14.3 inches of snow per year.