337 Area Code: Lafayette, Louisiana

Southwest Louisiana is served by the 337 area code, with Lafayette as the primary city. Lafayette sits in the Acadiana region of south Louisiana, the cultural heartland of the Cajun communities whose ancestors arrived from Acadia (in present-day Nova Scotia) in the eighteenth century. The city's working profile reflects the surrounding oil-and-gas industry, a substantial healthcare presence, and the University of Louisiana at Lafayette, alongside a rich cultural and culinary identity that distinguishes the broader Acadiana region from the rest of the state. The 337 footprint extends to Lake Charles, Crowley, New Iberia, and the surrounding parishes.

Records linked to 337 numbers in the directory often include Baton Rouge, Houma, New Orleans, and Shreveport — Louisiana cities outside the 337 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Louisiana and addresses linked across multiple cities. The directory currently documents 447 distinct prefixes within 337 in detail, a working subset of the prefix population the code carries.

Lafayette's home values come in below the US median, with median household income running below the national figure. The city's median age sits in the high thirties (close to the US reading), and population places Lafayette as one of the larger cities in south Louisiana outside the New Orleans and Baton Rouge metros — substantial enough to anchor a regional economy organized around oil-and-gas, healthcare, and the university. The broader 337 footprint reflects a long band of cities, towns, and parishes spread across the southwestern quarter of the state.