What is the definition of an independent voter?
There is no single one. There are many definitions of independent voter, and the one that applies to you depends on who is counting and which state you live in.
How IVP defines an independent voter
An independent voter is a voter whose politics are not governed by a party. The Independent Voter Project treats that as a mindset rather than an ideology, a party preference, or a registration status, which is why a registered Democrat can vote independently and a voter with no party registration may not.
“Being independent is a mindset, not an ideology.”
This is the definition the Independent Voter Project works from, and it is deliberately not about party preference, registration status, or a position on a left-to-right line. Being independent does not mean you lack convictions. Most independents hold them firmly.
It means you do not hold them so stridently that everyone who disagrees with you must be a fool, a crook, or a dupe. It means you are secure enough to let the other side finish a sentence, and still open to learning something from someone you came in disagreeing with. As IVN puts it, being an independent means you are grown up enough to think for yourself.
A definition like that cannot be read off a voter file. That is the point, and it is also why the registration numbers below should be read as a rough proxy at best.
How “independent voter” gets defined elsewhere
Four other groups use this term every day and none of them mean quite the same thing by it. Merriam-Webster defines an independent, in politics, by behavior: someone who does not follow a party line. Wikipedia's article opens by noting the term covers voters who do not align with a party, and then spends most of its length on the argument over who really belongs in that group. Pew Research Center studies independents as a survey population and reports that most of them lean toward one party. Gallup counts whoever says the word when asked.
Meanwhile your state election office has a definition of its own, and it is the only one with legal force. It decides which ballot you are handed.
Your state has its own definition, and it is the one that counts
Election law is written state by state, so the same voter can be unaffiliated in one state, unregistered-by-party in another, and accidentally enrolled in a minor party in a third. Three examples show how far apart the rules sit.
New York
You must join a party to vote in its primary.
New York runs closed primaries: only voters enrolled in a party may vote in that party’s primary. The deadline to change your enrollment falls months ahead of the vote. For the June 23, 2026 primary it was February 14. A New Yorker who wants to stay unaffiliated is not an independent voter in any practical sense. They are a voter who does not get to vote in the only round that decides most races.
Texas
There is no party registration to opt out of.
Texas does not register voters by party at all. You turn up, ask for a party’s primary ballot, and sign a pledge not to vote in another party’s primary that year. So in Texas "independent" is not a status anyone can hold. It only describes what you did, or did not do, in March. Any count of Texas independents is an estimate built from who pulled which ballot.
California
The official term is "No Party Preference", and the name trips people up.
California lets voters decline to join a party, and calls that No Party Preference. But the ballot form also lists the American Independent Party, a real and distinctly conservative party whose name reads to many like the unaffiliated option. When the Los Angeles Times surveyed 500 of its registrants in 2016, nearly three in four did not know they had joined a party at all. Hundreds of thousands of Californians who mean to be unaffiliated are enrolled in it.
Texas is not an outlier. Eighteen states have no party registration at all, which means that in more than a third of the country the question “are you a registered independent?” has no answer. You can compare every state's rules on our primary elections page.
The California mix-up shows how much weight one word carries. Those voters reached for “independent” and the law handed them a party they had not chosen, and the registrations are still on the rolls.
Plenty of registered Democrats and Republicans vote independently
Look at a voter file and you will see tens of millions of people registered with a major party. Most counts stop there and call them partisans. But people carry a party registration for all sorts of reasons that have nothing to do with loyalty: it is the only way to vote in a primary where they live, a parent filled in the form, a union or a neighborhood made it the path of least resistance, or they joined decades ago and never thought about it again.
Those voters split tickets. They judge races one at a time. They are the people who notice when a talking point is being handed to them and decline to repeat it. By any definition worth using, they are voting independently, and no registration field records that.
The scale of it shows up whenever anyone asks. In New York City, party leaders have put the figure at 40% of registered Democrats who joined the party only so they could vote. A closed primary does not measure loyalty. It manufactures the appearance of it.
When you simply ask people, independents are the largest group
Those are Gallup's 2025 annual averages, and the independent share is the highest the firm has recorded. The two major parties are tied well behind it.
Gallup also asks independents which way they lean, and most of them answer. Of that 45%, 20% lean Democratic and 15% lean Republican, leaving 10% who lean toward neither. Leaners often vote much like partisans do, and researchers who study this will tell you the number of truly up-for-grabs voters is far smaller than 45%.
That is a fair point about predicting elections. It is not an argument for closing the ballot. A voter who leans one way this cycle has still declined to join the party, and still has to clear a registration hurdle to take part in the round that decides most races. Leaning is not membership, and the law should not treat it as though it were.
So where does that leave you?
Political news without a party line
Independent Voter News covers elections and reform without carrying water for either party. It is published by the Foundation for Independent Voter Education.
Read IVNYou should not have to join a party to vote
If you think a primary paid for by every taxpayer should be open to every voter, say so on the record. IVP is in court in New York making that argument now.
Declare Your IndependenceThe label matters less than the ballot
However you define the word, millions of Americans are shut out of the elections they pay for. That is the part IVP is working to change.