Atkinson is an incorporated town in Henry County, Illinois, United States.

[4] As of the 2020 census[6] there were 965 people, 558 households, and 324 families residing in the town.

There were 463 housing units at an average density of 238.05 per square mile (91.91/km2).

The racial makeup of the town was 95.13% White, 0.31% African American, 0.00% Native American, 0.31% Asian, 0.00% Pacific Islander, 1.04% from other races, and 3.21% from two or more races.

31.90% of all households were made up of individuals, and 22.40% had someone living alone who was 65 years of age or older.