Louisiana Parishes
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Louisiana Parishes

Louisiana is divided into sixty-four parishes. On March 31, 1807, the territorial legislature divided the state into 19 parishes, without getting rid of the old counties (which continued to exist until 1845). In 1811, a constitutional convention organized the state into seven judicial districts, each consisting of groups of parishes. In 1816, the first official map of the state used the term, as did the 1845 constitution. Since then, the official term has been parishes.

St. Mary Parish, Louisiana

St. Mary Parish Education, Geography, and HistorySt. Mary Parish, Louisiana Courthouse

St. Mary Parish is a parish located in the state of Louisiana. Based on the 2010 census, the population was 54,650. The parish seat is Franklin. The parish was created in 1811.

St. Mary Parish comprises the Morgan City, LA Micropolitan Statistical Area, which is also included in the Lafayette-Opelousas-Morgan City, LA Combined Statistical Area.

Etymology - Origin of St. Mary Parish Parish Name

The parish was named in honor of Saint Mary.


County QuickFacts: CensusBureau Quick Facts

St. Mary Parish County History

St. Mary Parish was created on March 31, 1807. It is one of the 19 parishes, which were created by dividing the Territory of New Orleans. The parish was named in honor of Saint Mary. The Parish seat is Franklin.

Geography: Land and Water

As reported by the Census Bureau, the parish has a total area of 1,119 square miles (2,900 km2), of which 555 square miles (1,440 km2) is land and 564 square miles (1,460 km2) (50%) is water

Neighboring Parishes

Bordering parishes and counties are as follows:

  • Northeast: Assumption Parish
  • Southeast: Terrebonne Parish
  • South: Gulf of Mexico
  • Northwest: Iberia Parish; St. Martin Parish


St. Mary Parish School Board operates local public schools.

The Bureau of Indian Affairs has the Chitimacha Day School in the Charenton community of unincorporated St. Mary Parish

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