Bentonville is a census-designated place in northern Sprigg Township, Adams County, Ohio, United States. As of the 2010 census, it had a population of 327. Although it is unincorporated, it has a post office, with the ZIP code of 45105.
Bentonville is located on State Routes 41 and 136. They run concurrently through the community, splitting into separate routes at the south edge of Bentonville.