Why does Louisiana have parishes instead of counties?

A Spanish colonial church boundary, kept by the French, and written into law by the first territorial legislature in 1807.

Louisiana has parishes because the word was already in use when the United States took possession, and the men who wrote the territory’s first laws saw no reason to replace it. The unit itself is not exotic. A Louisiana parish occupies the same position in the federal statistical hierarchy as a county in Mississippi or Ohio, carries the same kind of five digit FIPS code, does the same kinds of work, and is counted the same way. Only the noun is different.

The word arrived with the church

Spain took Louisiana over from France in the 1760s and governed it until the very end of the century. Under Spanish administration Catholicism was the established religion, and the settled parts of the colony were organised into ecclesiastical parishes: districts attached to a church rather than to a courthouse. Those districts were the practical map of Louisiana. They had names people used and boundaries people recognised, and the priests kept the registers of baptisms, marriages and burials that any government eventually needs.

France recovered the colony at the turn of the nineteenth century and held it briefly before selling it to the United States in 1803. The parish map came through that handover intact, mostly because nothing on the ground had changed.

The formal step came under American rule. In 1807 the legislature of the Territory of Orleans divided the territory into parishes, converting church districts into units of civil government with courts and tax rolls. Sources describe that division in different ways and disagree about how it meshed with an earlier territorial scheme, so this article gives no count for it. Early territorial law did use counties for judicial purposes as well, and for a period both words appeared in the statutes, but the parish was the unit people actually used and the county names faded out. Louisiana became a state in 1812 and the word stayed.

Two inheritances explain why this is more than a quirk of vocabulary. Louisiana’s private law descends from the French and Spanish civil law tradition rather than from English common law, which is why its legal terminology diverges from the rest of the country in other places too. And its land was surveyed and settled in long lots running back from the water rather than in the rectangular township grid used across most of the public land states. Parish outlines in the southern half of the state follow bayous and river frontage rather than straight survey lines, which reads like the legacy of that settlement pattern. Open any parish on our Louisiana state page and the water is doing most of the drawing.

Same job, different word

For anyone using census data, comparing states, or writing about local government, the safe assumption is that a parish is a county. The Census Bureau treats it as one. It is a county-equivalent, one of the 3,144 such entities in the 50 states and the District of Columbia, and it appears in the same files, with the same identifier structure, as every county elsewhere. The translation table is short.

Elsewhere Louisiana What it means
County Parish the primary administrative subdivision of the state
County seat Parish seat the town holding the courthouse and main parish offices
County commission or board of supervisors Police jury or parish council the elected governing body
County executive, judge or administrator Parish president the elected executive, where the charter creates one
County sheriff Parish sheriff elected chief law enforcement officer
County clerk Clerk of court elected keeper of records and filings; the match to a county clerk elsewhere is close rather than exact

Everything a county does, a parish does: property assessment, roads and bridges outside municipal limits, drainage, courts, jails, elections, permitting, public health arrangements. If you want the general version of that list, we set it out in what a county actually is.

The comparison is worth making because not every county-equivalent is a working government. Of the 3,144, some 35 have no county government at all: all 11 Alaska census areas, all 9 Connecticut planning regions, all 5 Rhode Island counties, 9 of the 14 counties in Massachusetts, and Kalawao County in Hawaii. No Louisiana entity is on that list. All 64 parishes are operating units of government with a governing body, a sheriff, a seat and a courthouse, which is more than can be said for the counties of Rhode Island, where county government was abolished in 1846 and the name now survives only as a line on a map.

Police juries and parish presidents

Two broad forms of parish government exist, and which one a given parish uses is a matter of its own charter rather than a statewide rule.

The older form is the police jury. The parish is divided into wards or districts, voters elect a juror from each, and the assembled police jury acts as both the legislative and the administrative body for the parish. The name is a survival: police here carries the older sense of policy and public administration, not law enforcement. It was once close to universal in Louisiana and is still widely used.

The other form comes from home rule charters, which separate the two functions the police jury combines. An elected parish council legislates and an elected parish president runs the administration, in the same shape as a mayor and council or a county executive and board elsewhere. Several of the state’s larger parishes have adopted charters of this kind. Because charters change and forms differ parish by parish, a general reference should describe the pattern rather than assert a structure for a particular parish without checking that parish’s own current charter.

Orleans Parish is the case everyone eventually runs into. It is coterminous with the city of New Orleans: the parish and the city cover exactly the same ground, and the city government serves as the parish government. Arrangements of that shape are common enough to matter in a national dataset, which counts 54 entities that serve as their own seat, independent cities and consolidated city-counties among them. We go through the seat question in more detail in county seats explained.

Why a dataset that hardcodes “county” breaks

This is the practical reason the distinction matters here. Of the 3,144 county-equivalents in the 50 states and DC, most but by no means all are legally called counties.

Legal type word Entities
County 2,999
Parish 64
Independent city 40
Borough 13
Census Area 11
Planning Region 9
City and Borough 4
Municipality 2
No type word 2

A site that builds its sentences from a template with the word county baked in produces text that is simply false for all 64 Louisiana entries. “Orleans County is one of 64 counties in Louisiana” is wrong twice in nine words, and no reader in Louisiana will trust anything else on the page after reading it.

The same template fails again in Alaska, where the county slot is shared by 13 boroughs, 4 cities and boroughs, 2 municipalities and 11 census areas, so even a single state-level noun would not rescue it. Alaska’s version of this problem is its own article: why Alaska has boroughs. It fails a third time in Connecticut, where 9 planning regions replaced 8 counties in the federal files effective with the 2022 Census vintage, and where the regions are groups of towns that do not line up with the old county boundaries.

The fix is unglamorous. Every state in this site’s dataset carries its own noun, singular and plural, and every generated sentence pulls from that field rather than from a constant. Louisiana gets parish and parishes. Alaska gets a per-entity type word, because a single state noun is not enough there. The rest of the country gets county.

Writing about parishes

Capitalise the word when it forms part of a name: Orleans Parish, East Baton Rouge Parish, Jefferson Parish. Lowercase it when generic, as in “the parish council met”. Never substitute county for parish in a Louisiana name, and do not write “Louisiana counties” in a headline on the assumption that readers elsewhere will not know the word. They will work it out, and Louisiana readers will notice. The state has 64 parishes, they behave like counties, and calling them by their own name costs nothing.

Sources: US Census Bureau, Population Estimates Program, Vintage 2025 Population Estimates, released 26 March 2026; US Census Bureau, Gazetteer Files, 2025 Gazetteer Files, released 10 September 2025; US Census Bureau, Cartographic Boundary Files (1:500,000), 2025 Cartographic Boundary Files, released 23 April 2026. Retrieved 30 August 2026.

Figures quoted here are rebuilt from the Census Bureau files listed above each time the data pipeline runs, most recently 30 August 2026. Where a figure is computed rather than published, the text says so.