Buffalo Bayou in the context of "Harris County, Texas"

Houston is the most populous city in the U.S. state of Texas and the Southern United States. It is the fourth-most populous city in the United States, with a population of 2.3 million at the 2020 census. The Greater Houston metropolitan area, at 7.8 million residents, is the fifth-most populous metropolitan area in the nation and second-most populous in Texas. Located in Southeast Texas near Galveston Bay and the Gulf of Mexico, Houston is the seat of Harris County. Covering a total area of 640.4 square miles (1,659 km), it is the ninth largest city in the country and the largest whose municipal government is not consolidated with a county, parish, or borough. Although primarily located within Harris County, portions of the city extend into Fort Bend and Montgomery counties. Houston also functions as the southeastern anchor of the Texas Triangle megaregion.

Houston was founded by land investors on August 30, 1836, at the confluence of Buffalo Bayou and White Oak Bayou (a point now known as Allen's Landing) and incorporated as a city on June 5, 1837. The city is named after former General Sam Houston, who was president of the Republic of Texas and had won Texas's independence from Mexico at the Battle of San Jacinto 25 miles (40 km) east of Allen's Landing. After briefly serving as the capital of the Texas Republic in the late 1830s, Houston grew steadily into a regional trading center for the remainder of the 19th century. The 20th century brought a convergence of economic factors that fueled rapid growth in Houston, including a burgeoning port and railroad industry, the decline of Galveston as Texas's primary port following a devastating 1900 hurricane, the subsequent construction of the Houston Ship Channel, and the Texas oil boom. In the mid-20th century, Houston's economy diversified, as it became home to the Texas Medical Center—the world's largest concentration of healthcare and research institutions—and NASA's Johnson Space Center, home to the Mission Control Center.

White Oak Bayou is a slow-moving river in Houston, Texas. A major tributary of the city's principal waterway, Buffalo Bayou, White Oak originates near the intersection of Texas State Highway 6 and U.S. Highway 290 (the Northwest Freeway) and meanders southeast for 25 miles (40 km) until it joins Buffalo Bayou in Downtown. The river serves as a greenway which connects Downtown to the Houston Heights, Oak Forest, Garden Oaks, and Inwood Forest.

A large majority of White Oak Bayou's route travels through highly developed areas. The river's 111-square-mile (290 km) watershed contains a population of over 430,000.

Allen's Landing is the officially recognized birthplace of the city of Houston, Texas, United States, the largest city in Texas and the fourth largest in the United States. Located in Downtown Houston between the Main Street and Fannin Street viaducts, the landing encompasses the southern bank of Buffalo Bayou, the city's principal river, at its confluence with White Oak Bayou, a major tributary. Allen's Landing is located south of the University of Houston–Downtown Commerce Street Building.

In August 1836, just months after the Republic of Texas won its independence from Mexico, two New York real estate developers, John Kirby Allen and Augustus Chapman Allen, purchased 6,642 acres (26.88 km) of coastal prairie and settled the town of Houston on the banks of Buffalo Bayou. The present-day landing area was advertised as the head of navigation of the bayou and served as the city's first wharf.

The Port of Houston is one of the world's largest ports and serves the metropolitan area of Houston, Texas. The port is a 50-mile-long (80 km) complex of diversified public and private facilities located a few hours' sailing time from the Gulf of Mexico. Located in the fourth-largest city in the United States, it is the busiest port in the U.S. in terms of foreign tonnage and the busiest in the U.S. in terms of overall tonnage. Though originally the port's terminals were primarily within the Houston city limits, the port has expanded to such a degree that today it has facilities in multiple communities in the surrounding area. In particular the port's busiest terminal, the Barbours Cut Terminal, is located in Morgan's Point.

The Port of Houston is a cooperative entity consisting of both the port authority, which operates the major terminals along the Houston Ship Channel, and more than 150 private companies situated along Buffalo Bayou and Galveston Bay. Many petroleum corporations have built refineries along the channel where they are partially protected from the threat of major storms in the Gulf of Mexico. The petrochemical complex associated with the Port of Houston is one of the largest in the world.

Downtown is the largest central business district in the city of Houston and the largest in the state of Texas, located near the geographic center of the metropolitan area at the confluence of Interstate 10, Interstate 45, and Interstate 69. The 1.84-square-mile (4.8 km) district, enclosed by the aforementioned highways, contains the original townsite of Houston at the confluence of Buffalo Bayou and White Oak Bayou, a point known as Allen's Landing. Downtown has been the city's preeminent commercial district since its founding in 1836.

Today home to nine Fortune 500 corporations, Downtown contains 50 million square feet (4,600,000 m) of office space and is the workplace of 150,000 employees. Downtown is also a major destination for entertainment and recreation. Nine major performing arts organizations are located within the 13,000-seat Theater District at prominent venues including Alley Theatre, Hobby Center for the Performing Arts, Jones Hall, and the Wortham Theater Center. Two major professional sports venues, Daikin Park and the Toyota Center, are home to the Houston Astros and Houston Rockets, respectively. Discovery Green, an urban park located on the east side of the district adjacent to the George R. Brown Convention Center, anchors the city's convention district.

Harrisburg (originally Harrisburgh, shortened to Harrisburg in 1892) is a community now located within the city of Houston, Texas.

The community is located east of Downtown Houston, south of the Brays Bayou and Buffalo Bayou junction and west of Brady's Island. It was founded before 1825 on the eastern stretches of the Buffalo Bayou in present-day Harris County, Texas, on land belonging to John Richardson Harris. In 1926, Harrisburg was annexed into the city of Houston. The original name of Harris County was Harrisburg (Harrisburgh) County until it was shortened after the demise of the City of Harrisburg. Historical markers at the John Richardson Harris site tell of General Santa Anna's razing the town as he chased Sam Houston and his retreating army just before they reached Lynch's Ferry.

The Addicks Reservoir and Addicks Dam in conjunction with the Barker Reservoir prevent downstream flooding of Buffalo Bayou in the city of Houston, Texas. Both reservoirs were authorized under the Rivers and Harbors Act of June 20, 1938, which was modified by the Flood Control Acts of 1938, 1954, and 1965. The US Army Corps of Engineers (USACE) completed construction of Addicks Dam and the outlet facility in 1948.