Erwinville, LA is a city located in West Baton Rouge County, Louisiana and has a land area of 17.26 square miles (44.70 km2). The water area for the city is 1.62 square miles or 4.20 km2. There is one unique zip code in Erwinville, Louisiana and it is 70729. The area code(s) for Erwinville is 225.
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