Valley Falls is a village and census-designated place (CDP) in the town of Cumberland, Providence County, Rhode Island, United States. The population was 11,547 at the 2010 census. Warren Buffett's company Berkshire Hathaway was originally founded in 1839 by Oliver Chace in Valley Falls as a cotton manufacturing company, called the Valley Falls Company. Valley Falls is also the home of the Ann & Hope Mill. According to the United States Census Bureau, the CDP has a total area of 9.5 km2 (3.7 mi2). 9.2 km2 (3.5 mi2) of it is land and 0.3 km2 (0.1 mi2) of it (3.01%) is water.