Greater Houston, designated by the United States Office of Management and Budget as Houston–Pasadena–The Woodlands, is the fifth-most populous metropolitan statistical area in the United States, encompassing ten counties along the Gulf Coast in Southeast Texas. As of 2025, it has a population of 7,824,643.
The region of approximately 10,000 square miles (26,000 square kilometers) centers on Harris County, the third-most populous county in the U.S., which contains the city of Houston, the economic and cultural center of the South with a population of more than 2.3 million as of 2010. Greater Houston is part of the Texas Triangle megaregion along with the Dallas–Fort Worth metroplex, Greater Austin, and Greater San Antonio. Greater Houston also serves as a major anchor and economic hub for the Gulf Coast. Its Port of Houston is the largest port in the United States and the 16th-largest in the world.
