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Cayuga County, New York — public water systems

At a glance

88 active public water systems are filed under Cayuga County, New York in EPA's SDWIS records, together reporting 61,743 people served. The largest is Auburn, which reports serving 27,179 people. 32 are community water systems serving people where they live; the other 56 are non-community systems, such as schools, workplaces, campgrounds and gas stations with their own supply.

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

Active systems

88

Population served

61.7K

Community systems

32

Groundwater share

75%

How does Cayuga County compare with other New York counties?

Cayuga County has the 35th-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 61,743 people served in total, the 33rd-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 702 people, well 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 Cayuga County's drinking water come from?

By primary water source, Cayuga County's active systems draw on groundwater (60, 68%), purchased surface water (16, 18%), surface water (6, 6.8%) and groundwater under influence of surface water (3, 3.4%). Overall, 75% rely mainly on groundwater (including purchased groundwater) and 25% 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, Auburn, draws primarily on surface water.

What kinds of water systems operate in Cayuga County?

Cayuga County's active systems break down as 32 community systems (36%), 9 non-transient non-community systems (10%) and 47 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 (69%), local government (30%) and state government (1.1%).

The 50 largest water systems in Cayuga County

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Active public water systems in Cayuga County, New York
#Water systemCountyPopulation servedTypeSource
1AuburnCayuga27,179CommunitySurface water
2Sterling Renaissance FestivalCayuga3,523Transient non-communityGroundwater
3Owasco Water DistrictCayuga3,000CommunitySurface water
4Weedsport VillageCayuga2,300CommunityPurchased surface water
5Union Springs VillageCayuga2,000CommunityGroundwater
6Moravia VillageCayuga1,950CommunityGroundwater
7Fleming Wd #1Cayuga1,800CommunityPurchased surface water
8Sennett Consolidated Water DistrictsCayuga1,467CommunityPurchased surface water
9Port Byron VillageCayuga1,400CommunityPurchased surface water
10East Brutus Consolidated Water DistrictsCayuga1,287CommunityPurchased surface water
11Nys Thruway- Port Byron Service AreaCayuga1,090Non-transient non-communityPurchased surface water
12Fair Haven VillageCayuga1,001CommunityGroundwater
13Cayuga County Water & SewerCayuga958CommunityPurchased surface water
14Genoa-King Ferry WdCayuga900CommunityGroundwater
15Aurelius Wd No 3Cayuga872CommunityPurchased surface water
16Southern Cayuga Central SchoolCayuga860Non-transient non-communityGroundwater
17Cato VillageCayuga601CommunityGroundwater
18Locke W DCayuga600CommunityGroundwater
19Aurelius Wd No 2Cayuga520CommunityPurchased surface water
20Speedway #9956Cayuga500Transient non-communityGroundwater
21Circle K/Macs Convenience StoresCayuga500Transient non-communityGroundwater
22Springport Water District #1 - NorthCayuga500CommunityPurchased groundwater
23Springport Water District #1 - SouthCayuga500CommunityPurchased groundwater
24Montezuma W D #1Cayuga490CommunityPurchased surface water
25Cayuga Lake Mobile Home ParkCayuga463CommunityGroundwater
26Aurelius Wd No 1Cayuga440CommunityPurchased surface water
27Throop Wd No1Cayuga400CommunityPurchased surface water
28Aurora Village ofCayuga400CommunitySurface water
29Mackenzie-Childs, LtdCayuga290Non-transient non-communitySurface water
30Hejamada Family CampsitesCayuga275Transient non-communityGroundwater
31Cross Lake ParkCayuga250Transient non-communityGroundwater
32Dudley Water SupplyCayuga200CommunityGroundwater
33Northeast Christian Conference CenterCayuga200Transient non-communityGroundwater
34Camp Y-OwascoCayuga200Transient non-communitySurface water
35Ccwsa Phase 1a:Aur, Flem, SpringCayuga180CommunityPurchased surface water
36Sterling Wd#3Cayuga130CommunityPurchased groundwater
37Finger Lakes Drive-in TheaterCayuga120Transient non-communityGroundwater
38Yawger Brook CampgroundCayuga100Transient non-communityGroundwater
39Speedway #9946Cayuga100Transient non-communityGroundwater
40Sterling Creek CampgroundCayuga99Transient non-communityGroundwater
41Golden Horseshoe Event CenterCayuga95Transient non-communityGroundwater
42Bennetts Mobile CourtCayuga91CommunityGroundwater
43Whispering Winds MotelCayuga90Transient non-communityGroundwater
44Fillmore Golf Course ClubCayuga75Transient non-communityGroundwater
45Camp Caspar Gregory CorpCayuga75Transient non-communitySurface water
46Empire HavenCayuga70Transient non-communityGroundwater
47Westbury Water District-CcwsaCayuga67CommunityPurchased surface water
48Lakeview Mobile ManorCayuga60CommunityGroundwater
49Pleasant Valley Mobile Home Park-MoraviaCayuga60CommunityGroundwater
50Springport Wd #2 & Fleming Wd #6Cayuga52CommunityPurchased surface water

All other water systems in Cayuga County (38)

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

Cayuga County water systems: frequently asked questions

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

EPA's SDWIS records file 88 active public water systems under Cayuga County, New York: 32 community systems (36%), 9 non-transient non-community systems (10%) and 47 transient non-community systems (53%).

Who supplies drinking water in Cayuga County, NY?

The largest community water systems filed under Cayuga County are Auburn (27,179 people served), Owasco Water District (3,000 people served) and Weedsport Village (2,300 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 Cayuga County's drinking water come from groundwater or surface water?

Of the 88 active public water systems in Cayuga County, 75% draw mainly on groundwater and 25% on surface water, counting purchased supplies. The largest system, Auburn, uses surface water.

Where can I find a water quality report for Cayuga 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. 32 community systems are filed under Cayuga 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 Cayuga 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 Cayuga County, New York”, https://aquacensus.com/water-systems/new-york/cayuga (data as of October 1, 2026).