Maryland 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.
Maryland is found in the South, along with these other states: Maryland, Delaware, Virginia, North Carolina, South Carolina, Georgia, Florida, Alabama, Mississippi, Texas, Oklahoma, Arkansas, Tennessee, and Kentucky.
The last American Housing Survey Census indicates this region had 4,360,0002 households served by residential wells, with an average of 2.683 persons per household. The USGS estimates the population of self-supplied water supply users in Maryland to be 1,420,000, all of which use groundwater.
- 396 community water systems use groundwater for 959,000 people
- 539 non-community, non-transient water systems use groundwater for 149,000 people
- 2,260 non-community, transient water systems use groundwater for 331,400 people
- 1,520 irrigation wells used serving 600 farms and 78,700 acres