Water resources data for the 1991 water year for Georgia consists of records of stage, discharge, and water quality of streams; stage and contents of lakes and reservoirs; ground-water levels; and precipitation quality. This report contains discharge records of 114 gaging stations; stage for 28 gaging stations; stage and contents for 18 lakes and reservoirs; water quality for 138 continuing-record stations; water quality for 1 miscellaneous site; peak stage and discharge only for 97 crest-stage partial-record stations and 8 miscellaneous sites; water levels of 25 observation wells. These data represent that part of the National Water Data System collected by the U.S. Geological Survey and cooperating State and Federal agencies in Georgia.