Little Flock is a city in Benton County, Arkansas, United States. The population was 3,055 at the 2020 census. It is part of the Northwest …Little Flock is a city in Benton County, Arkansas, United States. The population was 3,055 at the 2020 census. It is part of the Northwest Arkansas region. Little Flock is located on a tributary of Little Sugar Creek approximately two miles north of Rogers.