post office

Located approximately 50 miles south of St. Louis is the town of Prairie du Rocher which translates to "prairie by the rock." The fourth European settlement in Illinois, this village was founded in 1722 shortly after the establishment of Fort de Chartres on a tract granted by the Royal Indian Company to Pierre Dugue Boisbriant, the commandant and builder of the fort. Situated on the fertile farmland beneath the Mississippi River bluffs now called the American Bottoms, Prairie du Rocher provided grain and other foodstuffs to New Orleans and other lower Louisiana Territory communities. A common field was granted in 1730 and the town’s first church was built in 1734.  

(Excerpt taken from http://www.greatriverroad.com/stegen/randattract/pdr.htm)


Click HERE for the latest on our quest for National Park status


During this COVID19 Pandemic, the Chamber wants to help!

Click HERE for details about our new

“Help a Neighbor” Program


The Steering Committee of the Prairie du Rocher Community Foundation 

presents its Strategic Plan!

Click HERE for access to the booklet

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We will be celebrating our 300th birthday in 2022--

just a few years from now!  

Click HERE to share your stories for our “300 Stories” Publication that will be available in 2022!

Be sure to check HERE  and on our Facebook page 

for all the upcoming celebrations being planned!

We LOVE new members!  To print a copy of our membership applications, click HERE.


Click HERE for information on ways you can help Prairie du Rocher Grade School.

Click HERE to print off an order form to purchase a memorial brick for the sidewalks at PDR Park. 


Remember to "Like" us on Facebook 

for all the latest Chamber news and pictures.  

You'll find us at:

Prairie du Rocher Chamber of Commerce

Also, check out our sister organization’s Facebook page:

Community Foundation of Prairie du Rocher


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Click HERE for Prairie du Rocher's flag history




Click HERE for Party at the Park details


Click HERE to link to Fort de Chartres’ website


Historic Creole House in Prairie du Rocher


Last updated: August 16, 2020

© 2008 Prairie du Rocher Chamber of Commerce. All Rights Reserved