Norfolk County, Massachusetts — public water systems

57 active public water systems serve Norfolk County, reporting 842.4K people served.

Dataset updated July 2026 . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

Population served

842.4K

Community systems

Groundwater share

63.2%

Water systems in Norfolk County

Active public water systems in Norfolk County, Massachusetts
#	Water system	County	Population served	Type	Source
1	Quincy Water Dept. (MWRA)	Norfolk	106,000	Community	Purchased surface water
2	Brookline Water and Sewer Division	Norfolk	63,191	Community	Purchased surface water
3	Weymouth Water Department	Norfolk	57,613	Community	Surface water
4	Randolph/Holbrook Joint Water Board	Norfolk	45,767	Community	Surface water
5	Dedham Westwood Water Dist.	Norfolk	41,630	Community	Purchased surface water
6	Braintree Water and Sewer Dept.	Norfolk	39,143	Community	Surface water
7	Randolph Water Department	Norfolk	34,362	Community	Purchased surface water
8	Bluedrop Water @ St Bernadette Church	Norfolk	34,362	Transient non-community	Purchased surface water
9	Bluedrop Water @ Randolph Dpw	Norfolk	34,362	Transient non-community	Purchased surface water
10	Franklin Water Department	Norfolk	33,399	Community	Groundwater
11	Needham Water Dept	Norfolk	33,130	Community	Purchased surface water
12	Norwood Water Dept. (MWRA)	Norfolk	29,909	Community	Purchased surface water
13	Wellesley Water Division	Norfolk	29,550	Community	Purchased surface water
14	Stoughton Water Department	Norfolk	29,281	Community	Purchased surface water
15	Milton Water Dept. (MWRA)	Norfolk	28,630	Community	Purchased surface water
16	Walpole Water Dept	Norfolk	24,070	Community	Groundwater
17	Canton Water Dept	Norfolk	22,453	Community	Purchased surface water
18	Foxboro Water Department	Norfolk	18,639	Community	Groundwater
19	Sharon Water Dept	Norfolk	16,846	Community	Groundwater
20	Bellingham Dpw Water Sewer Division	Norfolk	16,061	Community	Groundwater
21	Medway Water Department	Norfolk	13,115	Community	Groundwater
22	Medfield Water Dept.	Norfolk	12,894	Community	Groundwater
23	Wrentham Water Division	Norfolk	12,190	Community	Groundwater
24	Holbrook Public Works Dept	Norfolk	11,405	Community	Purchased surface water
25	Millis Water Dept	Norfolk	9,002	Community	Groundwater
26	Plainville Water Department	Norfolk	8,805	Community	Groundwater under influence of surface water
27	Norfolk Water Division	Norfolk	7,602	Community	Groundwater
28	Cohasset Water Dept	Norfolk	7,555	Community	Surface water
29	Town of Avon	Norfolk	4,777	Community	Groundwater
30	Hale Education, Inc..	Norfolk	3,000	Transient non-community	Groundwater
31	Wellesley College	Norfolk	3,000	Community	Groundwater
32	Mci Norfolk/Cedar Junction/Walpole	Norfolk	2,200	Community	Groundwater
33	Aquarion Water Company (Dover)	Norfolk	1,922	Community	Groundwater
34	Southfield Redevelopement Authority	Norfolk	1,800	Community	Purchased surface water
35	Blue Hills Spring Water	Norfolk	1,500	Transient non-community	Purchased groundwater
36	Wrentham Developmental Center	Norfolk	937	Community	Groundwater
37	Dover Water Dept	Norfolk	500	Non-transient non-community	Groundwater
38	Old Colony Ymca Stoughton	Norfolk	475	Transient non-community	Groundwater
39	Wentworth Hills Golf Club	Norfolk	250	Transient non-community	Groundwater
40	Camp Haiastan	Norfolk	200	Transient non-community	Groundwater
41	Glen Ridge Residents Trust	Norfolk	131	Community	Purchased groundwater
42	Aquarion Water Co. (Springdale Farms)	Norfolk	126	Community	Groundwater
43	Powisset Farm	Norfolk	100	Transient non-community	Groundwater
44	Mount St Marys Abbey	Norfolk	60	Community	Groundwater
45	Meadowbrook Water Trust	Norfolk	57	Community	Purchased groundwater
46	Bishops Landing Condominiums	Norfolk	50	Community	Groundwater
47	Precious Beginnings	Norfolk	44	Non-transient non-community	Groundwater
48	Old Farm Road Water Trust	Norfolk	40	Community	Groundwater
49	Rocky Mt.Sprg.Wtr (Randolph) Vnd	Norfolk	25	Transient non-community	Purchased groundwater
50	Primo Water @ Wal Mart #2103	Norfolk	25	Transient non-community	Purchased groundwater