Water Providers in Hartford County
- Aquarion Water - Simsbury System
- Berlin Water Department
- Bristol Water Department
- Connecticut Regional Water Authority
- Cromwell Fire District
- CT Water
- Ct Water - Unionville System
- Hazardville Water
- Jewett City Water
- Manchester Water Department
- Meriden Water Department
- Metropolitan District Commission
- New Britain Water Department
- Southington Water Department
- Valley Water Systems
- Waterbury Water Department
- Windham Water Works
Water Providers by City
- Avon
- Berlin
- Bristol
- Burlington
- Cheshire
- East Granby
- East Windsor
- Ellington
- Enfield
- Farmington
- Glastonbury
- Granby
- Hartford
- Manchester
- Mansfield
- New Britain
- Newington
- Plainville
- Plymouth
- Simsbury
- Southington
- Southington
- South Windsor
- Suffield
- Tolland
- Unionville
- Vernon
- Waterbury
- West Hartford
- Windsor Locks
- Wolcott
