Wilcox is a census-designated place located in Jones Township, Elk County, Pennsylvania, United States. The community was named after a settler, Col. A.I. Wilcox. As of the 2020 census, Wilcox had a population of 354. Wilcox is located in the west-central part of Jones Township in northern Elk County, in the valley of the West Branch of the Clarion River, a tributary of the Allegheny River. U.S. Route 219 passes through the center of town, leading north 29 miles to Bradford and south 14 miles to Ridgway, the Elk County seat.