Ottawa is located in Illinois. Ottawa, Illinois 61350has a population of 18,959. Ottawa 61350 is less family-centric than the surrounding county with 26% households with children. The county percentage for households with children is 26%.
The median household income in Ottawa, Illinois 61350 is $54,244. The median household income for the surrounding county is $59,610 compared to the national median of $66,222. The median age of people living in Ottawa 61350 is 41 years.
The average high temperature in July is 84.9 degrees, with an average low temperature in January of 12.2 degrees. The annual precipitation is 35.67.