Greenbrier is a city located in Faulkner County, in the state of Arkansas (AR), United States. Nestled in the West South Central division of the South region, it covers an area of 7.8 square miles (20.0 km²) and sits at an elevation of 362 ft. With a population of approximately 3,042 residents, Greenbrier offers a peaceful, rural atmosphere.
The town's population is composed of about 47.99% males and 52.01% females, and it has a population density of 392.52 people per square mile (151.55/km²). Greenbrier lies at a latitude of 35.23 and a longitude of -92.39, operating in the UTC-6.
Locals reflect a blend of American ancestry, with roots primarily in United States (18.1%), followed by English (7.7%), German (10%), and Scotch-Irish (1.5%) heritage. The town is identified by the ZIP code 72058.