Ste. Genevieve (French: Sainte-Geneviève [sɛ̃t ʒən.vjɛv]) is a city in Ste. Genevieve Township and is the county seat of Ste. Genevieve County, Missouri, United States. The population was 4,410 at the 2010 census. Founded in 1735 by French Canadian colonists and settlers from east of the river, it was the first organized European settlement west of the Mississippi River in present-day Missouri.
Founded around 1740 by Canadien settlers and migrants from settlements in the Illinois Country just east of the Mississippi River, Ste. Geneviève is the oldest permanent European settlement in Missouri. It was named for Saint Genevieve (who lived in the 5th century AD), the patron saint of Paris, the capital of France. While most residents were of French-Canadian descent, many of the founding families had been in the Illinois Country for two or three generations.