ZIP Codes in Louisiana
Louisiana's ZIP codes cover a state with a culture and geography unlike anywhere else in the country, from the French and Spanish-influenced streets of New Orleans to the bayous, wetlands, and Cajun country stretching across the state's south. With around 4.6 million residents, Louisiana's population centers around a handful of cities along the Mississippi River corridor, while much of the coastal south remains sparsely populated wetland vulnerable to hurricanes and flooding.
How ZIP Codes Are Organized Across the State
Louisiana's ZIP codes fall within the 70000–71499 range under the USPS system, one of the few states that also uses counties called "parishes" rather than the standard county system. New Orleans and the surrounding metro area occupy the lower end around 701xx, Baton Rouge, the state capital, sits near 708xx, and Shreveport, in the state's northwest corner, carries codes closer to 711xx.
Louisiana's Major Metro Areas by Population
The chart below shows how population splits between New Orleans and Baton Rouge, Louisiana's two largest metro areas, with Shreveport and Lafayette trailing behind.
New Orleans's ZIP codes cover one of the most culturally distinctive cities in the country, world-famous for its music, cuisine, and Mardi Gras celebrations, alongside a port economy that remains one of the busiest in the nation. Baton Rouge, upriver and home to Louisiana State University, carries codes reflecting a mix of state government, petrochemical industry, and college-town culture along the Mississippi River. For a broader comparison, our full US ZIP code directory shows how Louisiana's ranges fit alongside every other state.
Cajun Country and Southern Louisiana
Southern Louisiana, particularly the region around Lafayette, is the heart of Cajun and Creole culture, with ZIP codes covering bayou communities where French is still spoken by some older residents. This area's economy blends fishing, agriculture, and oil and gas industry work, and the region's low-lying geography makes it especially vulnerable to hurricanes and coastal erosion, a factor that increasingly shapes population trends in these ZIP codes.
North Louisiana and Shreveport
Shreveport, in the state's northwest corner, feels culturally and geographically distinct from South Louisiana - closer in character to neighboring Texas and Arkansas than to the Cajun and Creole culture found further south. ZIP codes here reflect a more traditional Southern character, with the Red River rather than the Mississippi shaping much of the local geography and economy.
Why ZIP Codes Matter Beyond Mail
In Louisiana, ZIP codes are closely tied to flood and hurricane insurance, particularly around New Orleans and the low-lying coastal parishes, where premiums and flood zone designations can vary dramatically even between adjacent ZIP codes. The state's petrochemical industry, concentrated heavily along the Mississippi River corridor between Baton Rouge and New Orleans, relies on ZIP-level data for logistics and workforce planning. And tourism operators in New Orleans and the surrounding region use ZIP codes to define service areas for the city's massive visitor economy.
Border Regions and Neighboring States
Louisiana shares borders with three states. To the west, Shreveport and Lake Charles sit close to the Texas border, sharing a strong economic connection tied to the oil and gas industry. To the north, the border with Arkansas blends into similar Delta farmland. And to the east, the line with Mississippi runs close to the Gulf Coast, sharing a similar hurricane-prone coastal geography.
Finding the Right ZIP Code
Use the list below to browse Louisiana's ZIP codes by city, parish, or population - sorted so the most populous areas surface first. Each entry links through to a detailed page with additional demographic data. If you're trying to identify the ZIP code for a specific address rather than browsing by city, the search tool at the top of this page will get you there faster than scrolling through the full list.
Frequently Asked Questions
How many ZIP codes does Louisiana have?
Louisiana has several hundred ZIP codes spread across its 64 parishes, concentrated most heavily around New Orleans and Baton Rouge.
What ZIP code range does Louisiana use?
Louisiana ZIP codes generally fall between 70000 and 71499, with New Orleans toward the lower end and Shreveport in the northwest further along the range.
Why does Louisiana use parishes instead of counties?
Louisiana is the only US state to use "parishes" as its county-equivalent administrative divisions, a legacy of its French and Catholic colonial history.
Can I look up a Louisiana ZIP code by city name?
Yes, use the search tool on this page or browse the full list below, which is organized by city and sorted by population.
Whether you're relocating to New Orleans's vibrant culture, researching property near Baton Rouge, or simply trying to pin down the right ZIP code for a specific Louisiana address, the data below covers every corner of the state - from Cajun Country to the Mississippi River corridor.