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.
Allen Parish is a parish located in the state of Louisiana. Based on the 2010 census, the population was 25,764. The parish seat is
Oberlin. Allen Parish is in southwestern Louisiana, southwest of Alexandria.
Allen Parish is named for former Confederate States Army general and Governor of Louisiana Henry Watkins Allen. It was separated in 1912 from
the larger Calcasieu Parish to the southwest.
Etymology - Origin of Allen Parish Name
Allen Parish is named for former Confederate States Army general and Governor of Louisiana Henry Watkins Allen.