What does 'people served' mean?

People served refers to the total population that receives water service from the utility. This number represents the estimated number of residents within the utility's service area.

Why are utilities listed by city?

Utilities are listed by their primary city of operation to help users find water services in their local area. Some utilities may serve multiple cities or unincorporated areas within a region.

How can I get more details about a utility?

Click on any utility name or the 'View Profile' button to access the full utility profile page, which includes detailed information, contact details, and compliance data.

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Drinking Water Utilities in Connecticut

Q: How many drinking water utilities are in Connecticut?

Connecticut has 38 drinking water utilities serving more than 10,000 people listed in this directory.

Browse utilities serving more than 10,000 people by location and population served.

Utilities listed

Total people served

2,467,083

Largest utility

Regional Water Authority

418,900 people

Coverage

100%

with population data

Connecticut has 38 drinking water utilities serving more than 10,000 people in this directory. The largest utility by population served is Regional Water Authority, serving 418,900 people. Utilities are listed with their city location and population served.

People Served:

01,000,000

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Utility Name	City	People Served	Action
Regional Water Authority	New Haven	418,900	View Profile
Metropolitan District Commission	Hartford	390,887	View Profile
Aquarion Water Company of Connecticut - Main System	Bridgeport	351,756	View Profile
Aquarion Water Company of Connecticut - Stamford	Stamford	119,214	View Profile
Waterbury Water Department	Waterbury	107,271	View Profile
Connecticut Water Company - Northern Region-Western System	East Windsor	98,690	View Profile
New Britain Water Department	New Britain	73,534	View Profile
Danbury Water Department	Danbury	62,055	View Profile
Meriden Water Division	Meriden	58,441	View Profile
Aquarion Water Company of Connecticut - Greenwich System	Greenwich	53,297	View Profile
Bristol Water Department	Bristol	52,079	View Profile
Manchester Water Department	Manchester	51,198	View Profile
Southington Water Department	Southington	43,069	View Profile
South Norwalk Electric and Water	Norwalk	42,000	View Profile
Middletown Water Department	Middletown	41,019	View Profile
Norwalk First Taxing District	Norwalk	40,256	View Profile
Torrington Water Company	Torrington	37,915	View Profile
Wallingford Water Department	Wallingford	37,267	View Profile
Norwich Public Utilities	Norwich	36,163	View Profile
CTWC - Shoreline Region-Guilford System	Guilford	33,975	View Profile
Groton Utilities	Groton	30,200	View Profile
New London Department of Public Utilities	New London	27,620	View Profile
University of Connecticut - Main Campus	Mansfield	27,199	View Profile
CTWC - Naugatuck Region-Central System	Naugatuck	22,615	View Profile
Windham Water Works	Windham	21,214	View Profile
Aquarion Water Company of Connecticut - Noroton System	Darien	18,737	View Profile
Hazardville Water Company	Enfield	18,544	View Profile
Valley Water Systems, Inc.	Plainville	18,231	View Profile
Waterford WPCA	Waterford	16,578	View Profile
East Lyme Water & Sewer Commission	East Lyme	15,245	View Profile
CTWC - Unionville System	Farmington	14,693	View Profile
Aquarion Water Company of Connecticut - Simsbury System	Simsbury	14,691	View Profile
Cromwell Fire District Water Department	Cromwell	14,316	View Profile
Aquarion Water Company of Connecticut - Valley System	Seymour	13,080	View Profile
Aquarion Water Company of Ct-new Milford	New Milford	12,659	View Profile
Avon Water Company	Avon	11,590	View Profile
Aquarion Water Company of Connecticut - Mystic	Stonington	10,788	View Profile
Aquarion Water Company of Connecticut - Canaan Sys	New Canaan	10,097	View Profile

Showing 1 to 38 of 38 utilities

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Top Drinking Water Utilities in Connecticut by Population Served

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Frequently Asked Questions

Definitions

People served: Total population supplied with water by the utility system.
Drinking water utility: A public water system that provides potable (safe to drink) water to residential and commercial customers through a distribution network.