San Jose is located in Illinois. San Jose, Illinois has a population of 539. San Jose is more family-centric than the surrounding county with 27.38% of the households containing married families with children. The county average for households married with children is 26.57%.
The median household income in San Jose, Illinois is $59,318. The median household income for the surrounding county is $54,415 compared to the national median of $69,021. The median age of people living in San Jose is 43.3 years.
The average high temperature in July is 85 degrees, with an average low temperature in January of 17.1 degrees. The average rainfall is approximately 38.1 inches per year, with 16.4 inches of snow per year.