Atchison USD 409Atchison USD 409 is a public unified school district headquartered in Atchison, Kansas, United States.WWW usd409.netHistoryIn 2021, the school board decided to change from Native American themed mascots for the sports teams at their high school and middle school.SchoolsThe school district operates four schools: Atchison High School Atchison Middle School Atchison Elementary School Central School