TPSI · Voter Registration · loading…

Party Registration

The U.S. voter rolls by registered party. Thirty-one states record each voter's party — blue where registered Democrats lead, red where Republicans do, indigo where the unaffiliated are the largest bloc. Toggle counties, or click a state to read it county by county.

Dem plurality

Rep plurality

Una plurality

No party reg.

Party registration · by state

Each state colored by the largest registered bloc, deeper where the margin is wider. Click any state to focus.

Democratic

Republican

Unaffiliated

No party reg.

No registration

Note: Color reflects registered party — not how a place votes. States & focused counties deepen with the plurality's margin; the national county view shows each county's largest registered party. Only 31 states record party at registration (the rest are grey); North Dakota (hatched) has no voter registration. Latest official rolls compiled from each state's election authority. See 2026 race ratings →