Orange County, New York — public water systems

At a glance

451 active public water systems are filed under Orange County, New York in EPA's SDWIS records, together reporting 415,298 people served. The largest is Kiryas Joel, which reports serving 51,623 people. 138 are community water systems serving people where they live; the other 313 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

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

Active systems

451

Population served

415.3K

Community systems

138

Groundwater share

91.4%

How does Orange County compare with other New York counties?

Orange County has the 3rd-most active public water systems among the 100 counties listed for active New York systems in EPA records; among the 64 with 3 or more systems, the median has 94. Its systems report 415,298 people served in total, the 8th-largest county figure in the state and 2.1% of the statewide total. The average system here reports serving 921 people, about 61% below the New York average of 2,374. Population figures are what each system reports; people served by more than one system, such as a wholesaler and the town that buys from it, are counted by each.

Where does Orange County's drinking water come from?

By primary water source, Orange County's active systems draw on groundwater (402, 89%), surface water (23, 5.1%), purchased surface water (14, 3.1%) and groundwater under influence of surface water (8, 1.8%). Overall, 91% rely mainly on groundwater (including purchased groundwater) and 8.2% on surface water, compared with 91% and 8.5% across New York. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Kiryas Joel, draws primarily on groundwater.

What kinds of water systems operate in Orange County?

Orange County's active systems break down as 138 community systems (31%), 73 non-transient non-community systems (16%) and 240 transient non-community systems (53%). A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. A non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. A transient non-community water system serves places where people do not stay long, such as gas stations and campgrounds, and regularly serves at least 25 people a day for at least 60 days a year. EPA lists their owner types as private (73%), local government (24%), state government (2.2%) and federal government (1.3%).

The 50 largest water systems in Orange County

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Active public water systems in Orange County, New York
#	Water system	County	Population served	Type	Source
1	Kiryas Joel	Orange	51,623	Community	Groundwater
2	Middletown City	Orange	30,000	Community	Surface water
3	Newburgh City	Orange	29,000	Community	Surface water
4	New Windsor Consolidated Wd	Orange	25,667	Community	Purchased surface water
5	Newburgh Consolidated Wd	Orange	22,282	Community	Surface water
6	Wallkill Consolidated Wd	Orange	18,450	Community	Groundwater under influence of surface water
7	Legoland New York	Orange	16,000	Non-transient non-community	Purchased surface water
8	Monroe Village	Orange	12,000	Community	Surface water
9	Woodbury Cons. W.D.	Orange	10,845	Community	Groundwater
10	Cornwall-on-Hudson	Orange	9,700	Community	Surface water
11	Port Jervis City	Orange	9,000	Community	Surface water
12	U.S.M.A. - Lusk System	Orange	8,000	Community	Surface water
13	Washingtonville Village	Orange	7,700	Community	Groundwater
14	Pine Bush Water District	Orange	7,600	Community	Groundwater
15	Walden Village	Orange	7,007	Community	Groundwater
16	Warwick Village	Orange	6,800	Community	Surface water
17	Goshen Village	Orange	5,600	Community	Surface water
18	Harriman Village	Orange	5,000	Community	Groundwater
19	Montgomery Village	Orange	4,519	Community	Groundwater
20	Highland Falls Village	Orange	4,101	Community	Surface water
21	U.S.M.A. - Stoney Lonesome Sys	Orange	4,000	Community	Surface water
22	Bear Mountain Water Supply	Orange + 1 more	3,564	Community	Surface water
23	Chester Village	Orange	3,448	Community	Surface water
24	Minisink Valley School Dist. Water Loop	Orange	3,400	Non-transient non-community	Groundwater
25	South Blooming Grove Village Wd 1	Orange	3,400	Community	Groundwater
26	Greenwood Lake Village	Orange	3,383	Community	Groundwater under influence of surface water
27	Maybrook Village	Orange	3,150	Community	Groundwater
28	Camp Buckner-Natural Bridge	Orange	3,000	Transient non-community	Surface water
29	Boces	Orange	3,000	Non-transient non-community	Groundwater
30	Florida Village	Orange	2,884	Community	Surface water
31	Highlands Water District	Orange	2,200	Community	Purchased surface water
32	Lake Hill Farms Water District	Orange	1,868	Community	Groundwater
33	Blue Lake	Orange	1,850	Community	Surface water
34	Westside Greenwood Lake W.D.	Orange	1,700	Community	Groundwater
35	Pakanasink Elementary School	Orange	1,600	Non-transient non-community	Groundwater
36	Valley Central High School	Orange	1,600	Non-transient non-community	Groundwater
37	Federal Correctional Inst.	Orange	1,580	Community	Groundwater
38	Montgomery W.D. #1	Orange	1,500	Community	Groundwater
39	Valley Central Middle School	Orange	1,250	Non-transient non-community	Groundwater
40	Wickham Village	Orange	1,147	Community	Groundwater under influence of surface water
41	Kings Estates	Orange	1,144	Community	Groundwater
42	Tuxedo Park Village	Orange	1,100	Community	Surface water
43	Otisville Village	Orange	1,090	Community	Groundwater
44	Amazon Swf1	Orange	1,000	Non-transient non-community	Groundwater
45	Lake Stahahe Ws	Orange	1,000	Transient non-community	Surface water
46	Indian Kill	Orange	1,000	Community	Surface water
47	Sheri Torah Girls School (Glenwood)	Orange	1,000	Non-transient non-community	Groundwater
48	Lake Tiorati Ws	Orange	999	Transient non-community	Surface water
49	Nys Thruway - Plattekill/Modena Area	Orange	999	Non-transient non-community	Purchased surface water
50	Sanfordville Elementary School	Orange	945	Non-transient non-community	Groundwater

All other water systems in Orange County (401)

The remaining active systems filed under Orange County, largest first, with the population each reports serving.

Orange County water systems: frequently asked questions

How many public water systems are in Orange County, New York?

EPA's SDWIS records file 451 active public water systems under Orange County, New York: 138 community systems (31%), 73 non-transient non-community systems (16%) and 240 transient non-community systems (53%).

Who supplies drinking water in Orange County, NY?

The largest community water systems filed under Orange County are Kiryas Joel (51,623 people served), Middletown City (30,000 people served) and Newburgh City (29,000 people served). Which system serves a particular address depends on its service area, which EPA's SDWIS records do not include; a water bill or the local utility can confirm it.

Does Orange County's drinking water come from groundwater or surface water?

Of the 451 active public water systems in Orange County, 91% draw mainly on groundwater and 8.2% on surface water, counting purchased supplies. The largest system, Kiryas Joel, uses groundwater.

Where can I find a water quality report for Orange County?

Each community water system must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1, covering the previous calendar year. 138 community systems are filed under Orange County, so the report to look for is the one from the system that supplies your address.

How can I check violations for a water system in Orange County?

Open the system's profile from the list on this page. Each profile shows the most recent Safe Drinking Water Act violations in EPA's records, with plain-English labels and whether each one is resolved. For current compliance status, EPA ECHO is the primary source.

More New York water systems

About this data

Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.

Cite as: AquaCensus, “Public water systems in Orange County, New York”, https://aquacensus.com/water-systems/new-york/orange (data as of October 1, 2026).