The Conneaut Lakeshore CDP surrounds Conneaut Lake, the largest natural lake wholly in Pennsylvania. It is located in northwestern Pennsylvania at (41.625296, -80.297706), in western Crawford County. The CDP consists of all development around the lake except for the borough of Conneaut Lake at the south end. Most of the CDP is in Sadsbury Township, with the northern end of the lake and CDP extending into Summit Township. Conneaut Lake Park, a resort area, is near the center of the CDP, on the western side of the lake. Harmonsburg is directly to the north.