Symco is an unincorporated community located in the town of Union, Waupaca County, Wisconsin, United States. Symco is located on Wisconsin Highway 22 at the Little Wolf River, north-northeast of Manawa. Symco has a car show called Symco Shakedown its in every second weekend of August. Notable people John Scanlon, Irish-born farmer and Greenback Party state legislator References Unincorporated communities in Waupaca County, Wisconsin Unincorporated communities in Wisconsin