Essex County, New Jersey — public water systems

24 active public water systems serve Essex County, reporting 672.4K people served.

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

Active systems

Population served

672.4K

Community systems

Groundwater share

20.8%

Water systems in Essex County

Active public water systems in Essex County, New Jersey
#	Water system	County	Population served	Type	Source
1	Newark Water Department	Essex	294,274	Community	Surface water
2	East Orange Water Commission	Essex	75,000	Community	Groundwater
3	Bloomfield Water Department	Essex	47,315	Community	Purchased surface water
4	Montclair Water Bureau	Essex	40,150	Community	Purchased surface water
5	Belleville Water Dept	Essex	35,129	Community	Purchased surface water
6	Orange Water Dept	Essex	30,134	Community	Purchased surface water
7	Nutley Water Dept	Essex	29,500	Community	Purchased surface water
8	Livingston Twp Div of Water	Essex	27,391	Community	Purchased surface water
9	South Orange Water Department	Essex	16,964	Community	Purchased surface water
10	Verona Water Department	Essex	13,641	Community	Purchased surface water
11	Cedar Grove Water Dept	Essex	12,900	Community	Purchased surface water
12	West Caldwell Water Department	Essex	10,759	Community	Purchased surface water
13	Caldwell Water Dept	Essex	9,027	Community	Purchased surface water
14	Glen Ridge Water Dept	Essex	7,681	Community	Purchased surface water
15	Fairfield Water Dept	Essex	7,400	Community	Purchased surface water
16	North Caldwell Water Dep	Essex	6,000	Community	Purchased surface water
17	Roseland Water Dept	Essex	5,300	Community	Purchased surface water
18	Essex Fells Water Dept	Essex	2,200	Community	Purchased surface water
19	State Street Grill	Essex	835	Non-transient non-community	Groundwater
20	Essex Fells Water Hilltop System	Essex	354	Community	Purchased surface water
21	North Caldwell - Hilltop	Essex	208	Community	Purchased surface water
22	The High Lawn	Essex	135	Non-transient non-community	Groundwater
23	M&T Restaurant	Essex	110	Transient non-community	Groundwater
24	Mainland Development Corp	Essex	40	Transient non-community	Groundwater