Time Zone: Assumption Parish lies in the Central Time Zone (CST/CDT) and observes daylight saving time.
The community of Napoleonville is the Seat for Assumption Parish.
Assumption Parish is one of the original parishes of Louisiana and was founded in 1807.
From the Census Estimates for 2009, ^{<1>} Assumption had a population of 22,874 people. This is a decrease of 2.2% since the last Census (which gave a population of 23,388 people in 2000).
At the time of the 2000 Census, Assumption represented 0.52% of the total population of Louisiana, making it the state's 40th most populous parish (out of 64 parishes).
The following table shows the recent changes in population. Other than 2000, the population counts have been estimated by the Census Bureau.
Year  Population  Change Since 2000  YeartoYear Change 
2010  23,421  +0.14%  +2.39% since 2009 
2009  22,874  2.2%  0.66% since 2008 
2008  23,026  1.55%  0.29% since 2007 
2007  23,093  1.26%  
    2000  23,388  The Last Census 
More information can be found on the Assumption Parish Census Page for Assumption Parish. .
