Delavan is located in Illinois. Delavan, Illinois 61734has a population of 1,560. Delavan 61734 is more family-centric than the surrounding county with 29% households with children. The county percentage for households with children is 28%.
The median household income in Delavan, Illinois 61734 is $58,401. The median household income for the surrounding county is $64,032 compared to the national median of $66,222. The median age of people living in Delavan 61734 is 40.3 years.
The average high temperature in July is 87.4 degrees, with an average low temperature in January of 15.7 degrees. The annual precipitation is 36.64.