From a total population of 12,850, Ottawa has a median age of 34.6. The average age of males, in Ottawa, is 32.8 while the average age of females is 37.3. When you compare this to median age of Kansas, Ottawa is 1.4 years younger.
The median income of individuals, in Ottawa, is $21,646 while the average household income is $43,828. When comparing the median income of people living in Ottawa to the rest of Kansas, the average income in Ottawa is $5,721 less.