The town of Erwin is located in the county of Unicoi. It covers a total area of 9.1 sq. km. Economy of the city revolves around industries involved in advertising, alternative medicine, automotive, beverages, finance, construction, apparel, commercial printing, pharmaceuticals, freight forwarding, industrial and commercial machinery, hotel, metal, oil and lubrication, real estate and telephone communication and logistics. Commercial spaces are utilized by youth centers, tourist information centers and resale shops.