Martinsville is located in Illinois. Martinsville, Illinois has a population of 1,314. Martinsville is less family-centric than the surrounding county with 20.56% of the households containing married families with children. The county average for households married with children is 30.62%.
The median household income in Martinsville, Illinois is $49,141. The median household income for the surrounding county is $66,067 compared to the national median of $69,021. The median age of people living in Martinsville is 40.5 years.
The average high temperature in July is 87.1 degrees, with an average low temperature in January of 19.6 degrees. The average rainfall is approximately 43.4 inches per year, with 14.2 inches of snow per year.