Pinellas is the name of a peninsula located roughly halfway down the west coast of Florida. It forms the western boundary of Tampa Bay and comprises the bulk of Pinellas County. There is a city named Pinellas Park in south Pinellas. The peninsula is bounded on the north by Pasco County, Florida, on the northeast by Hillsborough County, and on the east and south by Tampa Bay. It is bounded on the west by the Intra-Coastal Waterway and Gulf of Mexico.