Clearwater is a city located in Pinellas County, Florida, United States, nearly due west of Tampa and northwest of St. Petersburg. To the west of Clearwater lies the Gulf of Mexico and to the east lies Tampa Bay. As of the 2010 census, the city had a population of 107,685. It is the county seat of Pinellas County. Clearwater is the smallest of the three principal cities in the Tampa-St. Petersburg-Clearwater metropolitan area, most commonly referred to as the Tampa Bay Area.