10 Most Populated ZIP Codes in Louisiana

The top ZIP code for population in Louisiana is 70726 (Denham Springs, Livingston Parish), with a population of 61,965. Across the top 10 most populated ZIP codes in Louisiana, population ranges from 61,965 to 42,471, covering communities from Denham Springs to Prairieville.

Rank	ZIP	City	County	Population	Population
1	70726	Denham Springs	Livingston Parish	61,965	61,965
2	70072	Marrero	Jefferson Parish	55,641	55,641
3	70065	Kenner	Jefferson Parish	48,979	48,979
4	70301	Thibodaux	Lafourche Parish	48,820	48,820
5	70769	Prairieville	Ascension Parish	48,074	48,074
6	70737	Gonzales	Ascension Parish	47,971	47,971
7	70816	Baton Rouge	East Baton Rouge Parish	45,207	45,207
8	71111	Bossier City	Bossier Parish	43,302	43,302
9	70810	Baton Rouge	East Baton Rouge Parish	42,585	42,585
10	70056	Gretna	Jefferson Parish	42,471	42,471

Methodology

Rankings are derived from the U.S. Census Bureau American Community Survey 5-Year Estimates, vintage 2019 to 2023, joined to USPS ZIP Code Tabulation Areas. We rank by population and surface the top 10 ZIP codes within Louisiana. Values reflect ZCTA-level estimates and may differ slightly from city-level figures. Compiled and reviewed by the Zip Code Near Me Data Team.

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Reviewed by Zip Code Near Me Data Team. Last verified June 13, 2026.

10 Most Populated ZIP Codes in Louisiana

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