The town of Killen is situated in the county of Lauderdale. The town covers a total area of 4.9 sq. km. Commercial spaces are utilized by art galleries, arts and crafts shop, auto repair facilities, banks, restaurants, clubs, outlets of clothing accessories, department stores, drug stores, super markets, gourmet shops, machine shops and tourist information centers. Services related to supplies of wedding arrangements, truck repairing, rehabilitation, healthcare and data processing contribute to the economy of the town.