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 | Official name: State of Louisiana (État de Louisiane) Louisiana postal code abbreviation: LA You may also be interested in the answers to the following questions: Total area: 135 382 km2 ✅ What is the largest city by population in Louisiana?- Largest Louisiana cities by population: New Orleans ✅ What is the capital of Louisiana?- State capital of Louisiana: Baton Rouge ✅ What is the population of Louisiana?- Louisiana state population 2025: 4 574 836 |