Wolfe County had an estimated population of 7,503 in 1999 with 33 percent on public water. The estimated 2008 population was 6,979 with 85 percent served by a water utility. In areas of the county not served by public water, about 90 percent of the households rely on private domestic wells and 10 percent rely on other sources.
The Water Resource Development Commission has prepared a report on water-supply infrastructure in the county.
It is estimated that there are over 200,000 water wells in Kentucky. The Kentucky Groundwater Data Repository, maintained by the Kentucky Geological Survey, has information on over 50,000 of these wells. The locations of wells and springs in the county for which data are available is shown on the map of wells and springs in the county. Certified well drillers in Kentucky.