Tampa is a major city on the Gulf Coast of the U.S. state of Florida and the county seat of Hillsborough County. Tampa's borders include the north shore of Tampa Bay and the east shore of Old Tampa Bay. It is the third-most populous city in Florida, thirteenth-most populous in the Southeast, and 49th-most populous city in the country, with a population of 403,364 at the 2020 census. The Tampa Bay metropolitan area, at over 3.42 million residents, is the second-largest metropolitan area in Florida and 17th-largest in the United States. The Greater Tampa Bay area has over 4 million residents and generally includes the Tampa and Sarasota metro areas.