Rockwell is a census-designated place (CDP) in Garland County, Arkansas, United States.

As of the 2020 United States census, there were 4,548 people, 1,910 households, and 1,287 families residing in the CDP.

As of the census[7] of 2000, there were 3,024 people, 1,274 households, and 931 families residing in the CDP.

There were 1,549 housing units at an average density of 489.9 per square mile (189.2/km2).

23.2% of all households were made up of individuals, and 10.6% had someone living alone who was 65 years of age or older.