--- title: Map of the Louisiana Purchase, North America in 1804: U.S. Expansion, Rival Claims & Indigenous Nations author: Simeon Netchev source: https://www.worldhistory.org/image/19608/map-of-the-louisiana-purchase-north-america-in-180/ format: machine-readable-alternate license: Creative Commons Attribution-NonCommercial-NoDerivs (https://creativecommons.org/licenses/by-nc/4.0) updated: 2026-10-24 --- # Map of the Louisiana Purchase, North America in 1804: U.S. Expansion, Rival Claims & Indigenous Nations _Authored by [Simeon Netchev](https://www.worldhistory.org/user/simeonnetchev/)_ ## Image File [![Map of the Louisiana Purchase, North America in 1804: U.S. Expansion, Rival Claims & Indigenous Nations](https://www.worldhistory.org/uploads/images/19608.png)](https://www.worldhistory.org/uploads/images/19608.png) ## Image Caption The [Louisiana Purchase](https://www.worldhistory.org/Louisiana_Purchase/) (1803) was the United States' acquisition of France's territorial claim to approximately 828,000 square miles (2.14 million km²) of North America for $15 million. Negotiated under President [Thomas Jefferson](https://www.worldhistory.org/Thomas_Jefferson/) (in office 1801–1809), it nearly doubled the republic's claimed territory, secured control of New Orleans and the Mississippi [trade](https://www.worldhistory.org/disambiguation/trade/) corridor, and accelerated westward exploration and expansion. By 1804, the United States was organizing its newly acquired territories while the [Lewis and Clark expedition](https://www.worldhistory.org/Lewis_and_Clark_Expedition/) explored the Missouri River. Yet the purchase's boundaries remained disputed, Spain and [Britain](https://www.worldhistory.org/disambiguation/Britain/) maintained competing claims, and Indigenous nations governed much of the continent's interior. American expansion intensified conflicts over land, sovereignty, and slavery, laying the foundations for the later ideology of Manifest Destiny and the sectional tensions preceding the [American Civil War](https://www.worldhistory.org/American_Civil_War/) (1861–1865). #### Editorial Review This human-authored image has been reviewed by our editorial team before publication to ensure accuracy, reliability and adherence to academic standards in accordance with our [editorial policy](https://www.worldhistory.org/static/editorial-policy/). ## About the Author Simeon is a freelance visual designer and history educator, passionate about the human stories that shape the past. - [Linkedin Profile](https://www.linkedin.com/in/simeon-netchev/) ## Cite This Work ### APA Netchev, S. (2026, October 24). Map of the Louisiana Purchase, North America in 1804: U.S. Expansion, Rival Claims & Indigenous Nations. *World History Encyclopedia*. ### Chicago Netchev, Simeon. "Map of the Louisiana Purchase, North America in 1804: U.S. Expansion, Rival Claims & Indigenous Nations." *World History Encyclopedia*, October 24, 2026. . ### MLA Netchev, Simeon. "Map of the Louisiana Purchase, North America in 1804: U.S. Expansion, Rival Claims & Indigenous Nations." *World History Encyclopedia*, 24 Oct 2026, . ## License & Copyright Submitted by [Simeon Netchev](https://www.worldhistory.org/user/simeonnetchev/ "User Page: Simeon Netchev"), published on 24 October 2026. The copyright holder has published this content under the following license: [Creative Commons Attribution-NonCommercial-NoDerivs](https://creativecommons.org/licenses/by-nc/4.0deed.en). This licence only allows others to download this content and share it with others as long as the author is credited, but they can't change the content in any way or use it commercially. When republishing on the web a hyperlink back to the original content source URL must be included. Please note that content linked from this page may have different licensing terms.