Keller is an affluent city located in the northwest portion of the Dallas–Fort Worth metropolitan area in the US State of Texas that advertises itself as “successfully balancing big-city comforts with small-town charm”. Its density of 2,200 people per square mile and plenty of natural land is complemented by its recently constructed town hall, municipal service center, and award-winning recreation and aquatic center. The 2010 census recorded its population as 39,627, which ranks modestly as 74th in the state.

Keller was settled in the early 1850s and became a stop on the Texas and Pacific Railway, named after John C. Keller, a foreman on the railroad. The wooded region around Keller attracted settlers because of the close proximity to the Trinity River, a supply of plentiful game and water, and the abundance of land for cattle raising and farming. Keller was incorporated on November 16, 1955.