Hillsborough County Moving to Hillsborough County? Hillsborough County is defined as the City of Tampa, Plant City, the City of Temple Terrace and a number of unincorporated areas. Hillsborough County has convenient access to both the I-75 moving North/South and the I-4 moving East to Orlando. The estimated population count for Hillsborough County is 1,215,757. Hillsborough County Real Estate All Apollo Beach Homes - Apollo Beach Communities Brandon/Valrico - Brandon and Valrico Communities Dover All Lutz Homes - Lutz Communities All New Tampa Homes - New Tampa Communities All Odessa Homes - Odessa Communities Plant City All Riverview Homes - Riverview/Gibsonton Communities Tampa Communities Temple Terrace Thonotosassa USEFUL INFORMATION Hillsborough County Government Hillsborough County Economic Development Hillsborough Profile Hillsborough County Things To Do Hillsborough Public Schools Chambers of Commerce Greater Brandon Chamber of Commerce Greater Plant City Chamber of Commerce Greater Tampa Chamber of Commerce Greater Temple Terrace Chamber of Commerce Ruskin SouthShore Chamber of Commerce Ybor City Chamber of Commerce