Water Providers in Fairfield County
- Aquarion Water Bridgeport
- Aquarion Water Company Of Connecticut - Valley System
- Aquarion Water Company - Ridgefield
- Aquarion Water Company - Stamford
- Aquarion Water CT - Greenwich System
- Aquarion Water - Mystic
- Aquarion Water - New Canaan
- Aquarion Water - New Milford
- Aquarion Water Noroton
- Connecticut Regional Water Authority
- Connecticut Water Company - Naugatuck
- Danbury Water Department
- First District Water
- South Norwalk Electric & Water (SNEW)
Water Providers by City
- Beacon Falls
- Beacon Falls Town
- Bethel City
- Bridgeport
- Bridgeport
- Bridgeport
- Brookfield City
- Danbury
- Darien
- Darien
- Darien
- Darien
- Easton
- Easton
- Fairfield
- Fairfield
- Greenwich
- Greenwich
- Greenwich
- Greenwich
- Monroe Town
- New Canaan
- New Canaan
- New Canaan
- Newtown Town
- Norwalk
- Norwalk
- Norwalk
- Redding
- Redding
- Ridgefield
- Ridgefield
- Ridgefield
- Seymour
- Seymour Town
- Shelton
- Shelton
- Stamford
- Stamford
- Stamford
- Stamford
- Stratford
- Stratford
- Trumbull
- Trumbull
- Weston
- Weston
- Westport
- Westport
- Westport
- Wilton
- Wilton
- Wilton
