U.S. Cities with French Names: From Baton Rouge to St. Louis

French exploration, colonization, and commerce left a permanent toponymic imprint across North America. Here are notable U.S. cities with French-origin names, their meanings, and histories.

Major Cities

1. Baton Rouge, Louisiana — "Red Stick" (bâton rouge). Named for a blood-stained boundary pole marking tribal hunting grounds. Founded 1721; state capital since 1846.

2. New Orleans, Louisiana — Named for Philippe II, Duke of Orléans, Regent of France (1715–1723). Founded 1718 by Bienville. La Nouvelle-Orléans.

3. St. Louis, Missouri — Named for King Louis IX of France (Saint Louis, r. 1226–1270). Founded 1764 by Pierre Laclède and Auguste Chouteau as a fur-trading post.

4. Detroit, Michigan — Détroit = "Strait." Refers to the Detroit River connecting Lake St. Clair and Lake Erie. Founded 1701 by Antoine de la Mothe Cadillac as Fort Pontchartrain du Détroit.

5. Lafayette, Louisiana — Honors Gilbert du Motier, Marquis de Lafayette (1757–1834), French hero of the American Revolution. Renamed from Vermilionville in 1884.

6. Biloxi, Mississippi — French adaptation of Bilocci, from Choctaw Biloxi ("trifling people" or "first people"). French settlement 1699 (Fort Maurepas).

Other Notable Examples

• Des Moines, Iowa — Des Moines = "of the monks" (Trappist missionaries) or Moingona (Native name). Debated.
• Dubuque, Iowa — Julien Dubuque, French-Canadian lead miner (1788)
• Marquette, Michigan — Jacques Marquette, Jesuit explorer
• Joliet, Illinois — Louis Jolliet, explorer
• La Crosse, Wisconsin — La Crosse = "the crosier" (bishop's staff), game played by Natives
• Fond du Lac, Wisconsin — "Bottom of the lake"
• Eau Claire, Wisconsin — "Clear water"
• Prairie du Chien, Wisconsin — "Prairie of the dog" (Fox chief)
• Sault Ste. Marie, Michigan — "St. Mary's Falls"
• Terre Haute, Indiana — "High land"
• Vincennes, Indiana — François-Marie Bissot, Sieur de Vincennes
• Louisville, Kentucky — King Louis XVI (1778)
• Mobile, Alabama — Mobile from Choctaw Mauvila; French fort 1702
• Baton Rouge, LA — "Red stick"
• New Orleans, LA — Duke of Orléans
• St. Louis, MO — King Louis IX

These names trace the arc of la Nouvelle-France—from Quebec to New Orleans, the Great Lakes to the Missouri River—etched into the American map.