Major-party voter registration, especially among Democratic voters, is slipping as independents and third-parties surge

The partisan affiliation data, compiled by Ballotpedia, is disposable for the 33 states, territories and districts that people registration information by elector enactment affiliation.

But the inclination is besides reflected successful broader nationalist exit polls. The 2024 predetermination polls showed that for the archetypal time, self-identified independents outnumbered Democrats and were adjacent with Republicans.

Mary Ann Marsh, a governmental expert successful Massachusetts, said autarkic and third-party registrations are increasing successful fig due to the fact that of dissatisfaction with the large parties.

“I deliberation radical are conscionable disappointed successful authorities and disappointed successful enactment politics. And I deliberation we’re seeing it now,” Marsh said, pointing to June’s nationwide “No Kings” protests arsenic a motion that radical tin signifier without a large party. “People are taking matters into their ain hands.”

The investigation shows the summation successful the share of independents has travel astatine the outgo of the Democratic Party. Except during erstwhile President Barack Obama’s 2008 election, the stock of registered voters made up by registered Democrats has declined each twelvemonth since 2000 crossed the jurisdictions with data.

The diminution has accelerated successful caller years, arsenic the party’s stock of the registered voters successful jurisdictions with disposable information fell 1.2 percent points from 2024 to 2025, among the largest one-year decreases since 1998. Republicans’ elector stock has besides declined overall, though it has accrued since 2021.