Griggsville is located in Illinois. Griggsville, Illinois has a population of 1,167. Griggsville is less family-centric than the surrounding county with 18% households with children. The county percentage for households with children is 27%.
The median household income in Griggsville, Illinois is $53,335. The median household income for the surrounding county is $49,935 compared to the national median of $66,222. The median age of people living in Griggsville is 40.5 years.
The average high temperature in July is 86.3 degrees, with an average low temperature in January of 15.5 degrees. The annual precipitation is 37.17.