De Lassus, Missouri
# De Lassus, Missouri

De Lassus is an unincorporated community in St. Francois County, in the U.S. state of Missouri. Much of the community has been annexed by Farmington.

## History

De Lassus was platted in 1869 when the railroad was extended to that point. A post office called Delassus was established in 1870, and remained in operation until 1915. The community has the name of Charles de Hault de Lassus, a Spanish colonial official.

De Lassus can be found in the 1876 edition of The Monitor Guide to Post Offices and Railroad Stations in the United States and Canada, page 61.

