- Date of Independence: July 4, 1776 (not applicable - acquired through Louisiana Purchase)
- Date of Annexation to United States of America (USA): April 30, 1812 (18th state to join the Union)
- Population (2025): 4.61 million
- GDP (2025): $260 billion
- Largest City: New Orleans (351,000)
- State Capital: Baton Rouge (215,000)
- Historical Note: Known as the “Pelican State.” Acquired through Louisiana Purchase (1803) from France for $15 million. First state carved from Louisiana Purchase territory. Birthplace of jazz music and famous for Mardi Gras, French Quarter, and Creole/Cajun culture. Major industries include oil refining, petrochemicals, agriculture, and tourism. Known for bayous, Mississippi River, Hurricane Katrina (2005), and distinctive cuisine. Major port for international trade.