Pennsylvania Groundwater and Water Well Statistics
Few states can accurately or confidentially determine how many residential wells are in place. For each region, the American Housing Survey by the U.S. Census provides regional data.
Pennsylvania is found in the Northeast, along with these other states: Maine, Vermont, New Hampshire, Massachusetts, Connecticut, Rhode Island, New York, New Jersey, and Pennsylvania.
The last American Housing Survey Census indicates this region had 3,210,0002 households served by residential wells, with an average of 2.53 persons per household. The USGS estimates the population of self-supplied water supply users in Pennsylvania to be 3,470,000, with 100% of their water supply from groundwater.
- 1,479 community water systems use groundwater for 1,402,600 people
- 1,123 non-community, non-transient water systems use groundwater for 435,900 people
- 5,263 non-community, transient water systems use groundwater for 720,700 people
- 2,910 irrigation wells used serving 2,140 farms and 11,500 acres