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 99.0% since Jan 1995, a net change of 405,371 voters.
Party Leadership
Republican voters lead with 296,286 registrations, a margin of 23,078 (2.8%) over Democratic voters.
Fastest Moving Party
Republican registration is the fastest growing party at +8.5% since Jan 2020.
Momentum
Voter registration growth is accelerating — the latest month added 5,911 voters compared to 5,452 the prior month.
Frequently Asked Questions
Related Counties
Statewide Voter Data
Florida Registered Voters
Statewide active voter totals and historical trends.
Florida Registered Voters by Party
REP, DEM, NPA, and other party breakdowns over time.
Florida Voter Registration by County
Active voter totals across all 67 counties.
NPA Voters in Florida
No Party Affiliation totals, trends, and primary rules.
Florida Voter File Guide
How to get the list of registered voters in Florida.