Ottawa, a city located in the state of Illinois (IL), is home to a population of approximately 18,708 people. Ottawa boasts a median age of 39.6, with around 24.3% of its residents aged 60 or above. 7% of the population identifies as US Veterans. 13.2% of Ottawa residents are disabled. The city has an average household income of $67,940, while the unemployment rate stands at 6.8%, and around 18.3% of the population is considered to be living below the poverty level. In terms of housing, the average home value in Ottawa is $138,516, with a monthly rent averaging $869.