225 Area Code: Baton Rouge, Louisiana

South Louisiana is served by the 225 area code, with Baton Rouge as its primary city. Baton Rouge sits along the Mississippi River near the southern reach of the river's deepwater shipping channel, organized around the Louisiana State Capitol — a thirty-four-story tower that remains one of the tallest state capitols in the country — and the substantial petrochemical industry that runs along the river through the city's southern reaches. Louisiana State University's main campus occupies a substantial slice of the city's southern grid, and the broader 225 footprint covers the city along with Plaquemine, Donaldsonville, and the surrounding parishes.

Records linked to 225 numbers in the directory often include other Louisiana cities — Houma, Lafayette, New Orleans, and Shreveport among them. None of those are inside the 225 footprint. The pattern reflects standard public-record dynamics, with phone numbers porting across Louisiana and addresses linked across multiple cities. The directory currently documents 366 distinct prefixes within 225 in detail, a working subset of the prefix population the code carries.

Baton Rouge's median age sits well under the US figure, in the low thirties, a pattern shaped heavily by the substantial LSU student population. Household income runs below the national reading, home values come in below the US median, and population places Baton Rouge as one of the larger Louisiana cities — substantial enough to anchor a regional economy organized around state government, the petrochemical corridor, the university, and a long-running role as the capital city of the state.