 oak hills is a census-designated place (cdp) in butler county, pennsylvania, united states. the population was 2,333 at the 2010 census. ==geography== oak hills is located in the southern part of butler township at  (40.825041, -79.918853). it is bordered to the northeast by meadowood. the northwest boundary of the cdp follows connoquenessing creek. pennsylvania route 8 passes through the cdp, leading north  to downtown butler and south  to downtown [[pi
Census-designated_places_in_Butler_County,_Pennsylvania Census-designated_places_in_Pennsylvania Pittsburgh_metropolitan_area