San Jose is located in Illinois. San Jose, Illinois has a population of 639. San Jose is less family-centric than the surrounding county with 19.14% of the households containing married families with children. The county average for households married with children is 28.18%.
The median household income in San Jose, Illinois is $53,125. The median household income for the surrounding county is $44,695 compared to the national median of $57,652. The median age of people living in San Jose is 45 years.
The average high temperature in July is 85.7 degrees, with an average low temperature in January of 16 degrees. The average rainfall is approximately 38.9 inches per year, with 14.7 inches of snow per year.