Brownfield is a city in Terry County, Texas, United States. The population was 8,940 at the 2009 census. It is the county seat of Terry County near Lubbock in West Texas.

According to the United States Census Bureau, Brownfield has a total area of 6.3 square miles (16 km²), of which only 0.32% is water.

Brownfield lies in the center of Terry County, within the southern portion of the South Plains and Llano Estacado. The city rests on a windblown deposit called the Blackwater Draw Formation, which is underlain by a thick layer of caliche, referred to locally as the "Caprock." Beneath the caliche layer lies fluvial deposits called the Ogallala Formation, which contains a portion of the vast Ogallala Aquifer. The Caprock Escarpment, about 50 miles east, forms a rather precipitous drop of approximately 1,000 feet (305 m) and exposes various geologic layers. In early days, climbing the caprock escarpment was not easy for covered wagons.

The only terrain variation lies at the south end of the city where Lost Draw carves a channel that runs across the entire county. Lost Draw formed over 10,000 years ago at the end of the last Ice Age when the climate of the area was much wetter. When the vast glaciers of the north retreated, the left numerous dry river channels crisscrossing the Llano Estacado. When settlers during the 1800 ventured across this area, they often went into these channels expecting to find water, however, unless significant rains had occurred recently, their search was in vain, with many of the parties becoming "lost", hence the name, Lost Draw.

Texas (ⁱ/ˈtɛksəs/) (Alibamu: Teksi ) is the second most populous and the second most extensive of the 50 United States, and the most extensive state of the 48 contiguous United States. The name, based on the Caddo word "Tejas" meaning "friends" or "allies", was applied by the Spanish to the Caddo themselves and to the region of their settlement in East Texas. Located in the South Central United States, Texas shares an international border with the Mexican states of Chihuahua, Coahuila, Nuevo León, and Tamaulipas to the south, and borders the US states of New Mexico to the west, Oklahoma to the north, Arkansas to the northeast, and Louisiana to the east. Texas has an area of 268,820 square miles (696,200 km²), and a growing population of 25.7 million residents.

During the Spanish colonial rule, the area was officially known as the Nuevo Reino de Filipinas: La Provincia de Texas. Antonio Margil de Jesús was known to be the first person to use the name in a letter to the Viceroy of Mexico in July 20, 1716. The name was not popularly used in daily speech but often appeared in legal documents until the end of the 1800s.