Niagara County, New York — public water systems

At a glance

21 active public water systems are filed under Niagara County, New York in EPA's SDWIS records, together reporting 223,670 people served. The largest is Niagara Falls Water Board, which reports serving 50,193 people. All 21 are community water systems serving people where they live.

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

Active systems

Population served

223.7K

Community systems

Groundwater share

How does Niagara County compare with other New York counties?

Niagara County has the 57th-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 223,670 people served in total, the 13th-largest county figure in the state and 1.2% of the statewide total. The average system here reports serving 10,651 people, about 4.5 times 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 Niagara County's drinking water come from?

By primary water source, Niagara County's active systems draw on purchased surface water (17, 81%) and surface water (4, 19%). Overall, none rely mainly on groundwater (including purchased groundwater) and all on surface water, compared with 91% and 8.5% across New York. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Niagara Falls Water Board, draws primarily on surface water.

What kinds of water systems operate in Niagara County?

Niagara County's active systems break down as 21 community systems (100%). 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. EPA lists their owner types as local government (100%).

Water systems in Niagara County

🔒 Create a free account to export CSV

Active public water systems in Niagara County, New York
#	Water system	County	Population served	Type	Source
1	Niagara Falls Water Board	Niagara	50,193	Community	Surface water
2	North Tonawanda City	Niagara	31,568	Community	Surface water
3	Lockport City WTP	Niagara	21,165	Community	Surface water
4	Lockport Town Wds	Niagara	21,105	Community	Purchased surface water
5	Wheatfield Wd	Niagara	18,117	Community	Purchased surface water
6	Lewiston Water Improvementarea	Niagara	16,257	Community	Purchased surface water
7	Newfane Town Wds	Niagara	9,304	Community	Purchased surface water
8	Niagara Water Improvement Area	Niagara	8,100	Community	Purchased surface water
9	Royalton Townwide Water Dist.	Niagara	7,710	Community	Purchased surface water
10	Porter Master Improvement Area	Niagara	6,920	Community	Purchased surface water
11	Pendleton Town Wd	Niagara	6,050	Community	Purchased surface water
12	Wilson Town Water District	Niagara	5,993	Community	Purchased surface water
13	Cambria Water District	Niagara	5,839	Community	Purchased surface water
14	Hartland Wd	Niagara	4,117	Community	Purchased surface water
15	Lewiston Village	Niagara	2,781	Community	Purchased surface water
16	Somerset Consolidated Wd	Niagara	2,723	Community	Purchased surface water
17	Youngstown (V)	Niagara	2,021	Community	Purchased surface water
18	Middleport Village	Niagara	1,917	Community	Purchased surface water
19	Wilson Village	Niagara	1,213	Community	Purchased surface water
20	Barker Village	Niagara	577	Community	Purchased surface water

Niagara County water systems: frequently asked questions

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

EPA's SDWIS records file 21 active public water systems under Niagara County, New York: 21 community systems (100%).

Who supplies drinking water in Niagara County, NY?

The largest community water systems filed under Niagara County are Niagara Falls Water Board (50,193 people served), North Tonawanda City (31,568 people served) and Lockport City WTP (21,165 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 Niagara County's drinking water come from groundwater or surface water?

Of the 21 active public water systems in Niagara County, none draw mainly on groundwater and all on surface water, counting purchased supplies. The largest system, Niagara Falls Water Board, uses surface water.

Where can I find a water quality report for Niagara 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. 21 community systems are filed under Niagara 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 Niagara 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 Niagara County, New York”, https://aquacensus.com/water-systems/new-york/niagara (data as of October 1, 2026).