Keller is mostly residential, featuring more than 300 acres (120 ha) of developed land for 11 park sites and more than 26 miles of hiking and biking trails.

[5] Keller is in the western fringe of the Eastern Cross Timbers in northeast Tarrant County, part of the frontier of the Peters Colony settlers of the 1840s.

In the mid-1840s, the area was first settled by a group of families from Missouri that homesteaded near the head-waters of Big Bear Creek.

In the early 1870s, the Double Springs area had a cotton gin, a grist mill, a blacksmith shop and several stores.

In 1896, an artesian well was drilled in Keller; the Double Springs filled with silt over time and eventually were plugged and lost until rediscovery in 1984.

Streets going north and south are Lamar, Main and Elm; those running east and west are Price, Taylor, Hill, Vine, Bates, Olive and Pecan.

New residential development is gradually filling in open spaces, with neighboring towns affording no opportunity to expand its boundaries.

[citation needed] The U.S. Census Bureau's American Community Survey listed Keller as one of the "Nation's Richest Cities" with a population over 20,000 in 2021, ranked number 45 with median household income of $141,364.

[10] Fort Worth, Southlake, Roanoke The climate in this area is characterized by hot, humid summers and generally mild to cool winters.

The City of Keller is a full-service city, providing police, fire and emergency services, parks and recreation, library, senior center, animal control, planning, building inspection, economic development, public works, street maintenance, water, wastewater, drainage, and solid waste disposal.

Firefighters and paramedics provide full-time services for Keller residents and, through mutual aid, neighboring cities.

The member's purpose is to coordinate individual and collective local governments, assist regional solutions, eliminate unnecessary duplication, and enable joint decisions.

U.S. Route 377, a north–south United States highway runs along Keller's western border, parallel to Interstate 35W.

Davis Boulevard (FM1938), a north–south Farm to Market Road from North Richland Hills to Southlake, runs through Keller.