Definition
In election law, the excess of votes received by one candidate over those received by any other single candidate, without necessarily exceeding the combined votes cast for all other candidates. Where only two candidates compete, the winner by greater votes achieves a majority, which is also a plurality. The concept has practical significance only when three or more candidates divide the vote: the leading candidate may win with a plurality while falling short of an absolute majority.
In judicial opinions, plurality carries a second, distinct meaning. A plurality opinion is a decision joined by more members of an appellate court than any other single opinion, but not by a majority of the court. It announces the judgment in the case but does not carry the precedential force of a majority opinion.
Common Language
Modern common usage (Wiktionary): "A number or part of a whole which is greater than any other number or part, but not necessarily a majority"; also, in voting contexts, a vote count exceeding any single competitor's count without reaching a majority of all votes cast.
Historical common usage (Webster's 1913): "The greater number; a majority; also, the greatest of several numbers; in elections, the excess of the votes given for one candidate over those given for another, or for any other, candidate."
Editorial note: The common-language drift matters here. Webster's 1913 conflates plurality with majority, treating them as near-synonyms. Legal usage insists on the distinction: a plurality is always relative to other individual candidates, while a majority is relative to the total vote. A researcher encountering "plurality" in a nineteenth-century non-legal source should not assume the modern legal distinction was intended.
Common Confusion
Plurality vs. Majority: A majority requires more than half of all votes cast. A plurality requires only more votes than any single opponent. A candidate can win a plurality while receiving far less than half the total votes. Many election statutes and constitutional provisions specify which threshold governs a given office; failing to distinguish the two can produce fundamental misreadings of whether an election result was legally sufficient.
Plurality Opinion vs. Majority Opinion: A plurality opinion speaks for the largest bloc of a divided court but commands no majority. It does not establish binding precedent in the same way a majority opinion does. Concurring opinions in the same case may agree on the judgment while disagreeing on the reasoning, leaving the controlling legal rule uncertain. Researchers tracking the development of a doctrine through appellate opinions must identify whether they are reading a majority or a plurality, since only the former binds lower courts.
Recognized Forms
/SUBTYPES
Plurality (elections): The lead in votes over any single other candidate in a multi-candidate field.
Plurality opinion (appellate courts): An opinion joined by more justices or judges than any other single opinion, but short of a majority, announcing a judgment without establishing a majority rationale.
Plurality of offices (historical ecclesiastical and public law): The holding of two or more offices or benefices simultaneously by one person, a usage that appears in English legal sources and ecclesiastical law but is largely obsolete in American legal practice.
Why It Matters in Research
The term does double duty across two distinct research domains — election law and appellate jurisprudence — and the contexts rarely overlap. A researcher who encounters "plurality" in a state election-law dispute is reading about vote counts and sufficiency of election; a researcher who encounters it in a constitutional law annotation is reading about the binding force of a Supreme Court decision. Conflating the two wastes time and produces analytical error.
In election-law research, the critical question is always what the governing instrument — constitution, statute, or charter — requires. Some offices require a majority; others award election on a plurality. Historical sources, including nineteenth-century election law treatises and state constitutional conventions, sometimes used "plurality" and "majority" interchangeably (as Webster's 1913 reflects), so earlier materials must be read against the specific statutory or constitutional language, not assumed to adopt modern precision.
In appellate research, identifying a plurality opinion is a threshold step before relying on any case for a legal proposition. The Law Mind corpus will contain cases where the headnote or syllabus does not flag that the controlling opinion lacked majority support. Researchers should check vote counts in any Supreme Court or high-court case from a divided bench before treating the reasoning as precedent.
The ecclesiastical and public-office plurality usage — holding multiple offices simultaneously — appears in English legal sources from Blackstone's era forward and in some American colonial and early republic contexts. It is essentially obsolete as a live legal concept in modern American law but may appear in historical documents without obvious signal that the term is being used in this sense.
Historical Dictionary Support
Black's Law Dictionary (both the first and second editions) define plurality exclusively through the election-law sense, focusing on the arithmetic distinction from majority. The definition is consistent across both editions and accurately captures the core meaning as it was understood in late-nineteenth and early-twentieth century American law. Neither edition addresses the plurality opinion usage, which reflects how little attention appellate procedure received in early general legal dictionaries.
Rapalje & Lawrence adds a refinement that Black's states implicitly but does not make the centerpiece: a candidate with a plurality has more votes than any other single candidate, but not more than all the others combined. This is technically correct — that condition defines a plurality as distinct from a majority — though the distinction is more precisely stated as a definitional matter than a numerical one (a plurality can, coincidentally, exceed the combined opposition; what matters is that it is not required to do so). Rapalje & Lawrence's entry also bears an apparent textual corruption in the available source, cutting off mid-sentence, which limits its usefulness as a standalone reference.
None of the historical dictionaries surveyed address the plurality opinion doctrine, which developed primarily through twentieth-century Supreme Court practice. Researchers relying exclusively on these sources for that concept will find no guidance.
Jurisdictional Note
Election-law plurality rules vary significantly by jurisdiction and by office. Federal offices are generally governed by state law, which may require a majority (triggering runoffs), a plurality, or a supermajority for certain positions. Some states have adopted ranked-choice voting, which changes how plurality winners are determined. Any research question turning on whether a plurality was legally sufficient to elect must go directly to the applicable state constitution or statute.
Encyclopedia Cross-Reference
See Law Mind Encyclopedia: Elections and Election Law; Appellate Procedure and Precedent.