sentences:  Gibson County is the northern third of the Evansville, Indiana–Kentucky Metropolitan Statistical Area.Nearly 90% of the county exists within the Ohio River Valley American Viticultural Area along with all of neighboring Posey, Vanderburgh and Warrick counties and a portion of Pike County.Despite being close to Evansville and experiencing a large growth of population in the central areas, Gibson County still remains a largely rural county with half of the ten townships having populations less than 2,000.