Princeton is located in Illinois. Princeton, Illinois 61356 has population of 7,620. Princeton 61356 is less family-centric than the surrounding county with 25% of the households with children.
The median household income in Princeton, Illinois 61356 is $56,210. The median household income for the surrounding county is $58,569 compared to the national median of $66,222. The median age of people living in Princeton 61356 is 45 years.
The average high temperature in July is 85.1 degrees, with an average low temperature in January of 13.8 degrees. The annual precipitation is 37.87.