Hillsborough County Voter Registration
Hillsborough County, home to Tampa, is one of Florida's most politically competitive large counties with over 800,000 active voters. Located on Florida's Gulf Coast, it has been a reliable bellwether county — frequently reflecting the statewide winner in presidential and gubernatorial races.
Hillsborough County
Key Insights
Insight
Hillsborough is widely regarded as a bellwether county in Florida, with its election results often closely mirroring statewide outcomes.
Insight
The Tampa Bay metro area's rapid population growth has made Hillsborough one of the fastest-changing electorates in the state.
Insight
The county's mix of urban, suburban, and rural communities creates a diverse voter base that campaigns closely target and monitor.
Registration Trend
Active voter registration has grown by 95.3% since Jan 1995, a net change of 390,148 voters.
Party Leadership
Republican voters lead with 289,640 registrations, a margin of 22,456 (2.8%) over Democratic voters.
Fastest Moving Party
Republican registration is the fastest growing party at +6.1% since Jan 2020.