Some basic facts concerning Maryland drinking water.

• Maryland population: 6,177,224
• Population served by community water systems: 5,489,876
• Percent served by community water systems: 89%
• Percent served by individual wells: 11%
• Number of public water systems: 3,220
• Number of community water systems: 461
• Number of non-transient non-community water systems: 541
• Number of transient non-community water systems: 2,218
• Number of systems using surface water: 89
• Number of systems using only groundwater: 3,131

  
*As of 2024

For More Information 
Please contact the Water Supply Program at water.supply@maryland.gov or 410-537-3702​​