Atchison is a city located in Kansas. With a 2020 population of 10,468, it is the 35th largest city in Kansas and the 2997th largest city in the United States. Atchison is currently declining at a rate of -0.44% annually and its population has decreased by -5.02% since the most recent census, which recorded a population of 11,021 in 2010. Atchison reached it's highest population of 16,429 in 1910. Spanning over 8 miles, Atchison has a population density of 1,306 people per square mile.
The average household income in Atchison is $60,254 with a poverty rate of 21.66%. The median rental costs in recent years comes to $631 per month, and the median house value is $86,200. The median age in Atchison is 30.7 years, 29.3 years for males, and 32.6 years for females. For every 100 females there are 90.7 males.