Farmington is a city in Washington County, Arkansas, United States. The community is nestled in a valley among the Boston Mountains, a subset of the Ozark Mountains. Although the first settlers came from the Deep South in 1828, the community did not incorporate until 1946. Located immediately west of Fayetteville in the Northwest Arkansas metropolitan statistical area, Farmington has been experiencing a population boom in recent years, as indicated by a 66% growth in population between the 2000 and 2010 censuses. It has been characterized as a bedroom community by the University of Arkansas Community Design Center.

Washington County is a regional economic, educational, and cultural hub in the Northwest Arkansas region. Created as Arkansas's 17th county on November 30, 1848, Washington County has 13 incorporated municipalities, including Fayetteville, the county seat, and Springdale. The county is also the site of small towns, bedroom communities, and unincorporated places. The county is named for George Washington, the first President of the United States.