2020 census The 2020 United States census counted 10,885 people, 3,871 households, and 2,255 families in Atchison. The population density was 1,358.4 per square mile (524.5/km). There were 4,361 housing units at an average density of 544.2 per square mile (210.1/km). The racial makeup was 82.33% (8,962) white or European American (80.89% non-Hispanic white), 6.84% (745) black or African-American, 0.55% (60) Native American or Alaska Native, 0.71% (77) Asian, 0.06% (6) Pacific Islander or Native Hawaiian, 2.26% (246) from other races, and 7.25% (789) from two or more races. Hispanic or Latino of any race was 4.69% (511) of the population.
2020 census The 2020 United States census counted 10,885 people, 3,871 households, and 2,255 f,amilies in Atchison. The population density was 1,358.4 per square mile (524.5/km). There were 4,361 housing units at an average density of 544.2 per square mile (210.1/km). The racial makeup was 82.33% (8,962) white or European American (80.89% non-Hispanic white), 6.84% (745) black or African-American, 0.55% (60) Native American or Alaska Native, 0.71% (77) Asian, 0.06% (6) Pacific Islander or Native Hawaiian 2.26% (246) from other races, and 7.25% (789) from two or more races. Hispanic or Latino of any race was 4.69% (511) of the population.