River Forest is a suburban village adjacent to Chicago in Cook County, Illinois, United States.

The village is closely tied to the larger neighboring community of Oak Park.

There are significant architectural designs located in River Forest such as the Winslow House by Frank Lloyd Wright.

River Forest has a railroad station with service to Chicago on Metra's Union Pacific West Line.

The Native American history of the area is closely tied to the Des Plaines River and includes Menominee and Chippewa settlements near what is now the Desplaines Avenue and Roosevelt Road forest preserves of Cook County.

[3] 1831 saw the establishment of a steam sawmill on the east bank of the Des Plaines River.

The United States Postal Service operates the River Forest Post Office at 401 William Street.

[7] Metra operates a station in River Forest along the Union Pacific West Line at 8001 W. Central Avenue[8] Pace runs routes 309 and 313 along Lake Street through River Forest, stopping a block from the Metra station.

River Forest is perhaps best known for the diversity of early 20th century American residential architectural styles including several Frank Lloyd Wright designs and others within the Prairie School.

The Winslow House and the River Forest Tennis Club are most notable for Frank Lloyd Wright's early styles.

River Forest hosted the 2016 Little League Baseball Illinois State Tournament at Keystone Park.

[17] Every year, the Rotary Club of Oak Park River Forest hosts the Food Truck Rally in Keystone Park that donates all net proceeds to local charities.