Morris County, New Jersey — public water systems

302 active public water systems serve Morris County, reporting 449.8K people served.

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

Active systems

302

Population served

449.8K

Community systems

Groundwater share

96%

Water systems in Morris County

Active public water systems in Morris County, New Jersey
#	Water system	County	Population served	Type	Source
1	Southeast Morris County Mua	Morris	62,349	Community	Surface water
2	Parsippany-Troy Hills Water Department	Morris	50,400	Community	Purchased surface water
3	Dover Water Commission	Morris	27,806	Community	Groundwater
4	Montville Twp Mua	Morris	22,000	Community	Purchased surface water
5	Denville Twp Water Dept	Morris	15,881	Community	Groundwater
6	Madison Water Dept	Morris	15,820	Community	Groundwater
7	Randolph Twp Public Works Dept	Morris	14,820	Community	Purchased groundwater
8	Pequannock Twp Water Department	Morris	14,010	Community	Purchased surface water
9	Rockaway Twp Water Dept	Morris	14,000	Community	Groundwater
10	Nj American Water - Roxbury	Morris	11,793	Community	Groundwater
11	East Hanover Twp Water Dept	Morris	11,393	Community	Purchased surface water
12	Lincoln Park Water Dept	Morris	11,000	Community	Purchased surface water
13	Boonton Water Dept	Morris	9,532	Community	Surface water
14	Chatham Water Dept	Morris	8,962	Community	Groundwater
15	Florham Park Water Dept	Morris	8,846	Community	Groundwater
16	Jefferson Twp W U Lk Hop	Morris	8,500	Community	Groundwater
17	Mount Olive Twp W D Main	Morris	7,887	Community	Groundwater
18	Rockaway Boro Water Dept	Morris	7,066	Community	Groundwater
19	Nj American Water - Itc	Morris	6,463	Community	Groundwater
20	Wharton Water Dept	Morris	6,342	Community	Groundwater
21	Awo&M - Picatinny Arsenal	Morris	6,011	Community	Groundwater
22	Roxbury Twp W Dept-Shore	Morris	5,153	Community	Groundwater
23	Mt Olive Villages Water	Morris	5,000	Community	Groundwater
24	Washington Twp Mua-Schoo	Morris	4,986	Community	Groundwater
25	Jefferson Twp W U Milton Sys	Morris	4,500	Community	Groundwater
26	Roxbury Twp W Dept-Sky V	Morris	4,478	Community	Groundwater
27	Mine Hill Twp Water Dept	Morris	4,300	Community	Purchased groundwater
28	Mountain Lakes Water Dep	Morris	4,012	Community	Groundwater
29	Mt Olive Village Green Water System	Morris	3,600	Community	Groundwater
30	Netcong Water Dept	Morris	3,342	Community	Groundwater
31	Fayson Lakes Water Company Inc.	Morris	3,010	Community	Groundwater
32	Riverdale Boro Water Dep	Morris	2,850	Community	Purchased surface water
33	Veolia Water New Jersey Arlington Hills	Morris	1,989	Community	Groundwater
34	Mount Arlington Boro Dpw Main	Morris	1,978	Community	Purchased groundwater
35	Kinnelon Water Dept	Morris	1,938	Community	Purchased surface water
36	Mt Olive High School	Morris	1,750	Non-transient non-community	Groundwater
37	West Morris Central High	Morris	1,615	Non-transient non-community	Groundwater
38	Pequannock Twp Wd-Cedar Crest	Morris	1,463	Community	Purchased surface water
39	Jefferson Twp High School	Morris	1,400	Non-transient non-community	Groundwater
40	Hopatcong State Park	Morris	1,200	Transient non-community	Groundwater
41	Sisters of Charity of Se	Morris	1,100	Community	Groundwater
42	Morris Chase/Morris Hunt Pcws	Morris	1,080	Community	Groundwater
43	Mount Arlington Dpw Kadel Sys	Morris	1,053	Community	Purchased groundwater
44	Windlass Restaurant & Marina	Morris	1,020	Transient non-community	Groundwater
45	Quick-Chek	Morris	1,006	Transient non-community	Groundwater
46	Jefferson Twp Middle School	Morris	900	Non-transient non-community	Groundwater
47	Nj American Water - West Jersey	Morris	837	Community	Groundwater
48	School House Plaza	Morris	811	Transient non-community	Groundwater
49	St Lukes Parish	Morris	786	Non-transient non-community	Groundwater
50	Mount Olive Twp W D Sand	Morris	744	Community	Groundwater