Osage City is a city located in Kansas. With a 2020 population of 2,819, it is the 91st largest city in Kansas and the 6418th largest city in the United States. Osage City is currently declining at a rate of -0.04% annually and its population has decreased by -4.21% since the most recent census, which recorded a population of 2,943 in 2010. Osage City reached it's highest population of 3,469 in 1890. Spanning over 3 miles, Osage City has a population density of 895 people per square mile.
The average household income in Osage City is $54,285 with a poverty rate of 19.69%. The median rental costs in recent years comes to $593 per month, and the median house value is $92,400. The median age in Osage City is 47.3 years, 41 years for males, and 53.3 years for females. For every 100 females there are 92.7 males.