Tontitown is a city in Washington County, Arkansas, United States. The population was 2,460 at the 2010 census. Tontitown is part of the Fayetteville–Springdale–Rogers, AR-MO Metropolitan Statistical Area. Tontitown was founded in the late 19th century, mostly by Italian settlers. Since 1898, Tontitown has held an annual grape festival in mid-August, which celebrates the harvest and the town's Italian American heritage.