Yoakum–DeFrenn Army Heliport

Under the Hood Café was a coffee house located at 17 South College Street in Killeen, Texas. It provided services for soldiers located at Fort Hood, one of the largest American military installation in the world. Under the Hood Café was first managed by Cynthia Thomas, but later managers were Kyle Wesolowski, Lori Hurlebaus and Malachi Muncy. Under the Hood is a project of the Fort Hood Support Network. It bills itself as being a safe place for local soldiers to spend off-duty time at, where the normal issues of rank are irrelevant. It is also the host of the monthly Killeen Poetry Slam. The coffeehouse closed its doors in 2015 but the Fort Hood Support Network still exists as a project that has received a construction permit from the FCC to operate a low-power FM radio station serving the Fort Hood-Killeen community.

Killeen High School is a 5A public high school located in Killeen, Texas, USA. It is one of seven high schools in the Killeen Independent School District, which is located in western Bell County. For the 2021-2022 school year, the school was given a "C" by the Texas Education Agency.

Killeen is a city in Bell County, Texas, United States. According to the 2020 census, its population was 153,095, making it the 17th-most populous city in Texas and the largest of the three principal cities of Bell County. It is the principal city of the Killeen–Temple–Fort Cavazos Metropolitan Statistical Area. Killeen is 55 miles (89 km) north of Austin, 125 miles (201 km) southwest of Dallas, and 125 miles (201 km) northeast of San Antonio. Killeen is directly adjacent to the main cantonment of Fort Cavazos. Its economy depends on the activities of the post, and the soldiers and their families stationed there. It is known as a military "boom town" because of its rapid growth and high influx of soldiers.

Killeen Mall is a 557,418-square-foot (51,785.8 m2) shopping mall located in Killeen, Texas located on 63.1 acres (25.5 ha). It is owned and managed by Jones Lang Lasalle.

The Luby's shooting, also known as the Luby's massacre, was a mass shooting that took place on October 16, 1991, at a Luby's Cafeteria in Killeen, Texas. The perpetrator, George Hennard, drove his pickup truck through the front window of the restaurant before opening fire, killing 23 people and wounding 27 others. Hennard had a brief shootout with police in which he was seriously wounded but refused their orders to surrender and eventually killed himself. The shooting was the deadliest mass shooting in modern U.S. history, until it was surpassed in 2007 by the Virginia Tech shooting.

Fort Cavazos is a United States Army post located near Killeen, Texas. The post is named after Gen. Richard E. Cavazos, a native Texan and the US Army’s first Hispanic four-star general. Formerly named Fort Hood for Confederate General John Bell Hood, the post is located halfway between Austin and Waco, about 60 mi (97 km) from each, within the U.S. state of Texas. The post is the headquarters of III Armored Corps and First Army Division West and is home to the 1st Cavalry Division and 3rd Cavalry Regiment, among others. Its origin was the need for wide-open space to test and train with World War II tank destroyers. The War Department announced the location in January 1942, and the initial completion was set for that August. As originally constructed, Fort Cavazos had an area of 158,706 acres (64,226 ha), with billeting for 6,007 officers and 82,610 enlisted personnel. The main cantonment of Fort Cavazos had a total population of 53,416 as of the 2010 U.S. Census. Fort Cavazos was the most populous U.S. military installation in the world. The main business area is in Bell County, with the training countryside area of the post in Coryell County. In April 2014, the base's website listed 45,414 assigned soldiers and 8,900 civilian employees covering an area of 214,000 acres (87,000 ha).

KIIZ-FM (92.3 MHz or Z-92.3) is a commercial urban contemporary radio station in Killeen, Texas. The station is owned and operated by iHeartMedia, Inc. The station's studios are located in nearby Harker Heights, and its transmitter is located in Killeen.

The Carl R. Darnall Army Medical Center is a United States Department of Defense medical facility at Fort Cavazos, Texas. It provides medical care to servicemembers and their families, along with veterans and their dependents, in and around the largest U.S. military installation in the world. Named after inventor of water chlorination Brigadier General Carl Rogers Darnall, MD., the core of the medical center is a state of the art 947,000-square-foot hospital. The facility opened in 2016, and includes a full primary care and emergency medical facility, including a level III trauma center, and specialized care in obstetrics and gynaecology, orthopedics, and behavioral health. The hospital provides treatment to nearly 3,000 patients daily. The medical center is one of the largest in the Military Health System, comprising more than 105 buildings in addition to the main facility, spread over Fort Cavazos, three local communities, and a clinic at the Red River Army Depot in Bowie County, Texas, outside of Texarkana. The medical center and its outlying facilities are staffed nearly entirely by uniformed servicemembers of the U.S. Army, however in 2019, the administrative control of the facility was shifted from United States Army Medical Command to the Defense Health Agency, an integrated joint Department of Defense combat support agency. All patients of the facility are insured and billed through Tricare, the health insurance system of the DoD. The medical center is led by Colonel Richard G. Malish.

Skylark Field (IATA: ILE, ICAO: KILE, FAA LID: ILE) is a city-owned, public-use airport located three nautical miles (6 km) east of the central business district of Killeen, a city in Bell County, Texas, United States. It is included in the National Plan of Integrated Airport Systems for 2011–2015, which categorized it as a general aviation facility. It was formerly known as Killeen Municipal Airport.The airport does not currently offer scheduled passenger service on commercial airlines. Atlantic Southeast Airlines, operating as Delta Connection, served this airport until August 2003, when it replaced its turboprop airplanes with regional jets which required a longer runway. In August 2004, the City of Killeen relocated the remaining airlines from Killeen Municipal Airport to new facilities at the Killeen-Fort Hood Regional Airport, which has a longer runway to accommodate larger jets and an expanded terminal to handle more passengers.

Ellison High School is a 5A public high school in the city of Killeen, Bell County, Texas for grades 9-12. It is one of five high schools in the Killeen Independent School District. Ellison High School opened in 1978 and the first graduation class was held in 1979. The Ellison High School football program received a donation of $25,000 from the American television channel NBC and automobile maker Toyota, for their participation in the Friday Night Lights Hometown Sweepstakes contest. The former University of Kentucky head basketball coach, Billy Gillispie, was the head coach at Ellison in the early 1990s, leading the school to the 5A state basketball tournament in 1993. For the 2021-2022 school year, the school was given a "B" by the Texas Education Agency.

On Wednesday, April 2, 2014, a shooting spree was perpetrated at several locations on the Fort Hood (now Fort Cavazos) military base near Killeen, Texas. Four people, including the gunman, were killed while 14 additional people were injured; 12 by gunshot wounds. The shooter, 34-year-old Army Specialist Ivan Lopez, died of a self-inflicted gunshot wound.

Robert M. Shoemaker High School is a public high school located in Killeen, Texas (USA) and classified as a 6A school by the UIL. Formerly the Ellison 9th Grade Center, Robert M. Shoemaker is one of six high schools in the Killeen Independent School District located in western Bell County. 2001 was the inaugural year for the high school, graduating students who primarily transferred from C.E. Ellison. For the 2021-2022 school year, the school was given a "C" by the Texas Education Agency.