Riverwoos is a village in Lake County, Illinois, United States. Riverwoods was established on the banks of the Des Plaines River in 1949 by local steel magnate Edward L. Ryerson. The population was 3,843 at the 2000 census. The corporate headquarters of Discover Card, Walgreen's, and Wolters Kluwer's Tax, Accounting and Legal division (better known locally as CCH, Inc. or Commerce Clearing House) are located there, as well as Orphans of the Storm, an animal shelter founded in 1928 by famous dancer Irene Castle. The Village hosts the annual "Arts in Riverwoods" festival.