As of August 2025, 189.5 million Americans are registered to vote. That’s almost eight in 10 Americans who are 18 or older.
Forty-five percent of registered voters declared a party affiliation on their registration. And some states have comparatively high percentages of one affiliation or another.
How many registered voters are in each state?
Among states reporting 2025 voter registration data, California has the most registered voters, 22.9 million, followed by Texas (18.3 million) and Florida (13.5 million). These states also rank highest in overall populations.
California has the highest number of registered voters. Wyoming has the fewest.
Registered voters by state, August 2025
The states with the fewest number of voters are Wyoming (274,759), Vermont (496,276), and Alaska (605,302). Washington, DC, which is not a state, has 478,451 registered voters.
But not all states have reported 2025 voter registration data. Arkansas, Connecticut, Hawaii, Indiana, Missouri, North Dakota, Ohio, and Tennessee haven’t publicly released 2025 data and are therefore missing from these estimates.
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Illinois does not provide a registration summary. For a fee, it will provide household voter registration data to registered political committees for bona fide political purposes.
North Dakota does not require voter registration, and therefore doesn’t report registration statistics. The state estimated it had 594,140 eligible voters for the 2024 election.
Which states have the highest voter registration rates?
Voter registration was highest in Minnesota at 83.6%. Seven other states had registration rates higher than 80.0%: Oregon, New Jersey, Mississippi, Michigan, Iowa, Kentucky and Maryland (as did Washington, DC).
Thirty-two states had registration rates between 70.0% to 79.9%, and 10 states had rates below 69.9%. Arkansas’s rate of 64.7% was the nation’s lowest.
Minnesota has the highest rate of voter registration (84%) and Arkansas has the lowest (65%).
Percent of voting-age citizen population registered to vote, 2024
How many voters are registered Republicans?
As of August 2025, 37.4 million voters are registered Republicans. Don’t forget, this count is only from states that have political party affiliation in their voter registration records. This total may also change since some states release updated voter registration numbers monthly.
In Wyoming, 77% of voters are registered Republicans.
Percent of voters registered as Republicans by state, August 2025
The largest numbers of registered Republicans are in California (5.8 million, or 25.2% of the state’s registered voters) and Florida (5.5 million, or 40.7%). Wyoming has the highest percentage of registered Republicans (77.2%).
How many voters are registered Democrats?
As of August 2025, the nation has around 44.1 million registered Democrats. The largest numbers of Democrats are in California (10.4 million or 45.3% of the state’s total registered) and New York (5.9 million, or 47.5%).
Washington, DC, has the highest percentage at 75.6%. Maryland has the next highest at 51.7%.
In DC, 76% of voters are registered Democrats. In Maryland, it's 52%.
Percent of voters registered as Democrats by state, August 2025
How many voters are registered independents?
There are 34.3 million voters who have no affiliation, are undeclared, or are registered as independents. Of states where voters can declare a party, the highest independent voter percentages are Massachusetts (64.8%), Alaska (62.1%), and Rhode Island (49.7%).
Independent voters account for nearly 28.8% of all registered voters in states that report party affiliation.
Massachusetts has the highest percentage of registered independent voters (65%).
Percent of voters registered as independent, no affiliation, or undeclared, by state, August 2025
How many voters are registered in minor parties?
Although most voters are registered as Republicans, Democrats, or independents, there are other options. The Green Party is a common minor party, as is the Libertarian Party.
States are not limited to establishment political parties and can found their own. Delaware has the popular culture-inspired Mandalorian Party.
About 3.1 million people, or 2.6% of voters in states where party affiliation is reported, are registered under minor parties.
In Kentucky, 6% of voters are registered with minor parties.
Percent of voters registered under minor party affiliations, including Green and Libertarian, by state, August 2025
What does the data miss?
Some states release voter statistics daily, monthly, quarterly, or less frequently than that. 2025 data is up to date as of the time of publication.
When possible, voter counts are “active” voters, a designation that changes from state to state. In Utah, for example, a voter becomes inactive when they “have not updated their address or who had mail returned as undeliverable.” In Michigan, a voter becomes inactive when they move from their voting jurisdiction, they die, they are identified as a duplicate, or the voter requests to cancel their registration. Inactive voters are typically ineligible to vote.
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