With more than 2.3 million residents, Houston is the fourth most populous city in the United States and the largest city in Texas. The city spans approximately 656 square miles, which is comprised of 634 miles of land and 22.3 miles of water. According to the U.S. Census Bureau, the Houston-The Woodlands-Sugar Land Metro Area covers 8,260 square miles with a population of 6,772,470 people. Houston is home to the second largest concentration of Fortune 1000 companies in the U.S.
The city serves as the nation’s headquarters for the energy industry, with more than 700 exploration and production companies operating in the region. More than 40,000 oil and gas extraction workers are employed in Houston, representing approximately 30 percent of the energy jobs in the U.S. Houston is well known for its offshore drilling and exploration activities and is the home of one of the largest ports in the world – Port Houston.