Definition
Per capita means "by the head" or "by the individual." In law, it describes a method of dividing property, rights, or entitlements equally among all qualifying persons, each receiving an identical share regardless of how they are related to one another or to the source of the distribution.
The term appears most prominently in two distinct legal contexts:
1. Succession and estates: When an intestate estate is divided per capita, each eligible heir receives an equal fractional share. If a decedent leaves three surviving grandchildren, each takes one-third — not based on which parent's line they descend from, but simply because all three stand at the same generational distance from the decedent.
2. General distribution and apportionment: Outside succession law, per capita describes any allocation made on a per-person basis — legislative apportionment, treaty distributions, class action settlements, and government benefit formulas among them.
Common Language
Modern common usage (Wiktionary): "Per person; shared equally among all individuals."
Historical common usage (Webster's 1913): The phrase was understood in its plain Latin sense — by heads, by individual count — and was used in both statistical and legal contexts to mean a proportional share assigned to each person.
Editorial note: The common and legal meanings are unusually close here, but the legal context adds precision the ordinary usage omits. In everyday speech, "per capita" is primarily a statistical term (per capita income, per capita consumption). In law, it is a term of art governing the mechanics of inheritance and distribution, with specific consequences that distinguish it from per stirpes — a distinction invisible in ordinary usage.
Common Confusion
Per capita is routinely confused with per stirpes, and the distinction is consequential. Under per stirpes ("by the root" or "by representation"), shares are divided by family line, not by headcount. If one of three children predeceases the decedent but leaves two children of their own, per stirpes gives those grandchildren a combined one-third (their parent's share), while per capita would give them nothing unless they themselves qualify as heirs. The two methods can produce dramatically different outcomes when heirs predecease the decedent and leave descendants of their own. Historical sources use both terms without always flagging which rule a given jurisdiction defaults to — a persistent research trap.
Why It Matters in Research
The per capita / per stirpes distinction is the central navigational challenge when researching intestate succession in historical sources. Several complications arise:
Default rules shift by era and jurisdiction. Early American law frequently defaulted to per stirpes distribution, following English common law. Statutory reform in many states during the twentieth century introduced modified per capita approaches — sometimes called "per capita at each generation" — that neither the historical dictionaries nor early treatises describe. A researcher reading Black's or Burrill's must not assume the rule they describe matches any particular state's current or historical default.
"Per capita" in historical sources means the classical form only. Historical dictionaries describe the straightforward equal-share-per-head model. They do not address the "per capita with representation" or "per capita at each generation" variants codified in the Uniform Probate Code and adopted in various forms across modern jurisdictions. Researchers working with twentieth- and twenty-first-century materials will encounter these variants without finding them named or explained in shelf dictionaries.
Statistical and regulatory uses require context. When "per capita" appears in legislative debates, treaty texts, or administrative regulations, it carries its ordinary mathematical meaning rather than the succession-law term of art. Corpus researchers should identify context before importing succession-law interpretive rules.
Class action and settlement contexts. Modern litigation uses per capita distribution as one of several settlement allocation models. Historical dictionaries provide no guidance here; the term migrated from inheritance law into procedural and remedial contexts relatively recently.
Historical Dictionary Support
Black's Law Dictionary (both editions) and Burrill's Law Dictionary agree closely on the core definition: per capita denotes equal division by head among persons standing in equal degree to the decedent. All three sources identify the term's civilian origin and note its adoption into English and American succession law. Burrill adds useful texture by emphasizing that the rule applies specifically when heirs "stand in equal degree" — implicitly flagging that unequal degrees trigger different analysis.
None of the three historical sources addresses the modern statutory variants (per capita at each generation) or non-succession uses of the term. Black's both editions describe per capita almost exclusively in the intestacy context, which accurately reflects the term's primary legal significance at the time of publication but understates its current range. Researchers should treat these sources as authoritative for classical intestate succession doctrine and as silent on modern modifications.
Jurisdictional Note
Default rules for intestate succession vary by state. Some states apply classic per capita distribution; others have adopted the Uniform Probate Code's "per capita at each generation" formula, which distributes shares equally among all persons at the nearest generation with surviving heirs. Researchers should confirm which statutory formula applies in the relevant jurisdiction rather than relying on the unmodified historical definition.
Encyclopedia Cross-Reference
No directly matching Law Mind Encyclopedia entry. The encyclopedia entries retrieved (Negligence Per Se, Physical Takings Per Se Rules, Defamation Per Se) share the Latin modifier but address unrelated doctrines. Consult those entries for their respective per se rules, not for per capita distribution.