St. Charles Parish is a parish located in the U.S. state of Louisiana. At the 2020 census, its population was 52,549. The parish seat is Hahnville and the most populous community is Luling.

The German Coast was a region of early Louisiana settlement located above New Orleans, and on the west bank of the Mississippi River. Specifically, from east to west, in St. Charles, St. John the Baptist, and St. James parishes of present-day Acadiana. It was largely settled by German immigrants and their African slaves. The four settlements of Augsburg, Hoffen, Karlstein, and Marienthal were located along this "coast".