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Louisiana population by year, 1990 to 2025

Louisiana lost about 274,000 people in 2006 after Hurricane Katrina and peaked at 4.68 million in 2016, ranking 25th in 2025.

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What the data shows

  • Louisiana: 4.22M in 1990, 4.62M in 2025. It peaked at 4.68M in 2016.

About this chart

Louisiana's chart has a visible cliff. The estimate stood at about 4.58 million in 2005 and fell to about 4.30 million in 2006, after Hurricane Katrina in 2005 displaced hundreds of thousands of residents. The state then rebuilt its population and reached a peak of 4,681,346 in 2016. That sudden loss is a large part of why Louisiana's long-run growth looks so small.

Since that peak, Louisiana has shrunk slightly, to 4,618,189 in 2025. Over the long run it has grown only 9.5 percent since 1990, 3.3 percent since 2000 and 1.6 percent since 2010. The state ranked 21st among the 50 states in 1990, 22nd in 2000, and 25th in 2010 and 2025. Data are Census Bureau July 1 estimates.

The data

Source: U.S. Census Bureau population estimates, July 1 (vintages 1999, 2000–2010 intercensal, 2020 and 2025), resident population of Louisiana, millions. Retrieved November 4, 2026.

Population of Louisiana, Residents, 1990 to 2025, 1990–2025
DateLouisiana
19904.22M
19914.24M
19924.27M
19934.29M
19944.31M
19954.33M
19964.34M
19974.35M
19984.36M
19994.37M
20004.47M
20014.48M
20024.50M
20034.52M
20044.55M
20054.58M
20064.30M
20074.38M
20084.44M
20094.49M
20104.55M
20114.58M
20124.60M
20134.63M
20144.65M
20154.67M
20164.68M
20174.67M
20184.66M
20194.66M
20204.65M
20214.63M
20224.60M
20234.60M
20244.62M
20254.62M

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Frequently asked questions

What is the population of Louisiana?

Louisiana had about 4.62 million residents (4,618,189) in July 2025, according to Census Bureau estimates. That ranks 25th among the 50 states.

What happened to Louisiana's population after Hurricane Katrina?

The estimate dropped from about 4.58 million in 2005 to about 4.30 million in 2006. It climbed back to roughly the pre-Katrina level around 2012 and peaked at 4,681,346 in 2016.

When did Louisiana's population peak?

Louisiana peaked in 2016 at 4,681,346. The 2025 estimate is about 63,000 lower, though the state has edged up since 2023.

Where does this data come from?

U.S. Census Bureau population estimates, July 1 (vintages 1999, 2000–2010 intercensal, 2020 and 2025), resident population of Louisiana, millions. Retrieved November 4, 2026. You can download the full table as a CSV from this page.

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