 The Greater Houston Partnership projected the metropolitan area would add between 4.1 and 8.3 million new residents between 2010 and 2050.Greater Houston has the seventh-highest metropolitan-area gross domestic product in the United States, valued at $490 billion in 2017.A major trade center anchored by the Port of Houston, Houston–The Woodlands–Sugar Land has the second-highest trade export value of all metropolitan areas, at over $84 billion in 2016, accounting for 42% of the total exports of Texas.