Our Geography
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The Roman Catholic Diocese of Baton Rouge encompasses 5,405 square miles (13,999 sq. km.) in twelve civil parishes (counties) in south central Louisiana, USA.
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Civil Parishes Within Church Parishes?Our Unique History
Orignially founded with counties following the Louisiana Purchase in 1803, a civil parish system was adopted in 1807 which reused the prior ecclesiastical parish boundaries created when Louisiana was formed from French and Spanish colonies.
The Diocese of Baton Rouge includes the parishes of Ascension, Assumption, East Baton Rouge, East Feliciana, Iberville, Livingston, Pointe Coupée, St. Helena, St. James, Tangipahoa, West Baton Rouge, and West Feliciana. Of these civil parishes, Pointe Coupée and Iberville are two of the original twelve counties (later, parishes) defined by the Territorial Legislative Council in 1803.
The Diocese of Baton Rouge currently contains 64 church parishes within these twelve civil parishes.
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