Westchase is a census-designated place (CDP) in Hillsborough County, Florida, United States. The population was 21,747 at the 2010 census, up from 11,116 at the 2000 census. The census area encompasses most of the 33626 ZIP code area.
Westchase is located halfway between Tampa and Palm Harbor. Its boundaries include Oldsmar to the west, Keystone to the north, Town 'n' Country to the south, and Citrus Park to the east. Westchase Golf Course is a major recreational amenity for the community. Tampa Bay Downs, a horse racetrack, is located on the area's western edge.
The Westchase Community Association is the largest deed-restricted community (homeowner association) within the Westchase census-designated place. The community is organized into 28 neighborhoods, or villages. Some of these villages are organized into even smaller subsections. Each of these villages and their "sub-villages" are represented by a voting member and at least one alternate who are elected annually by the residents of a particular neighborhood. Some of the villages also have a website that is maintained by a "village webmaster". Residents are encouraged to participate by attending website committee meetings or providing material to help improve the website to the webmaster.