Herkimer County, New York — public water systems
At a glance
123 active public water systems are filed under Herkimer County, New York in EPA's SDWIS records, together reporting 48,130 people served. The largest is Ilion (V) Water Works, which reports serving 8,053 people. 35 are community water systems serving people where they live; the other 88 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
123
Population served
48.1K
Community systems
35
Groundwater share
89.4%
How does Herkimer County compare with other New York counties?
Herkimer County has the 25th-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 48,130 people served in total, the 38th-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 391 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 Herkimer County's drinking water come from?
By primary water source, Herkimer County's active systems draw on groundwater (98, 80%), purchased surface water (7, 5.7%), groundwater under influence of surface water (6, 4.9%) and surface water (6, 4.9%). Overall, 89% rely mainly on groundwater (including purchased groundwater) and 11% 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, Ilion (V) Water Works, draws primarily on surface water.
What kinds of water systems operate in Herkimer County?
Herkimer County's active systems break down as 35 community systems (28%), 5 non-transient non-community systems (4.1%) and 83 transient non-community systems (67%). 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 (70%), local government (26%) and state government (4.1%).
The 50 largest water systems in Herkimer County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Ilion (V) Water Works | Herkimer | 8,053 | Community | Surface water |
| 2 | Herkimer Village | Herkimer | 7,606 | Community | Surface water |
| 3 | Little Falls City | Herkimer | 4,605 | Community | Surface water |
| 4 | Frankfort (V) Water Works | Herkimer | 2,995 | Community | Groundwater |
| 5 | Mohawk (V) Water Works | Herkimer | 2,985 | Community | Groundwater |
| 6 | Nys Thruway - Indian Castle/Iroquois | Herkimer | 2,780 | Non-transient non-community | Groundwater |
| 7 | Dolgeville (V) Pws | Herkimer | 2,166 | Community | Surface water |
| 8 | Old Forge-Thendara Water District | Herkimer | 1,275 | Community | Groundwater |
| 9 | East Herkimer Water District | Herkimer | 1,024 | Community | Purchased surface water |
| 10 | West Canada Jr-Sr High School | Herkimer | 900 | Non-transient non-community | Groundwater |
| 11 | West Winfield Village | Herkimer | 862 | Community | Groundwater |
| 12 | Town of Webb Wd#1 | Herkimer | 780 | Community | Purchased groundwater |
| 13 | Newport Village | Herkimer | 740 | Community | Groundwater under influence of surface water |
| 14 | Frankfort Wd #2 | Herkimer | 700 | Community | Purchased groundwater |
| 15 | Middleville (V) Water Works | Herkimer | 550 | Community | Groundwater |
| 16 | Frankfort Wd #4 (Ilion) | Herkimer | 535 | Community | Purchased surface water |
| 17 | Poland Village | Herkimer | 508 | Community | Groundwater |
| 18 | Nys-Nicks Lake State Park | Herkimer | 400 | Transient non-community | Groundwater |
| 19 | Ilion Perimeter Water District | Herkimer | 354 | Community | Purchased surface water |
| 20 | Cedar Lake Club | Herkimer | 300 | Transient non-community | Groundwater |
| 21 | Eagle Bay Park Association | Herkimer | 300 | Transient non-community | Groundwater |
| 22 | Dolgeville Rod & Gun Club | Herkimer | 250 | Transient non-community | Groundwater |
| 23 | Millers Grove Trailer Park | Herkimer | 217 | Community | Groundwater |
| 24 | American Legion Adirondack #1118 | Herkimer | 200 | Transient non-community | Groundwater |
| 25 | Herkimer Wd #3 (Highland-Steuben) | Herkimer | 192 | Community | Purchased surface water |
| 26 | Frankfort Wd #11 | Herkimer | 186 | Community | Purchased groundwater |
| 27 | Adirondack Woodcraft Camps | Herkimer | 186 | Transient non-community | Groundwater |
| 28 | Beardslee Castle | Herkimer | 150 | Transient non-community | Groundwater |
| 29 | Trails End Campground & Mobile Park | Herkimer | 150 | Community | Groundwater |
| 30 | Duffys at the Glenmore | Herkimer | 150 | Transient non-community | Groundwater |
| 31 | Salisbury Vfd | Herkimer | 150 | Transient non-community | Groundwater |
| 32 | Stonebridge Restaurant and Banquets | Herkimer | 150 | Transient non-community | Groundwater |
| 33 | Vfw Post 2338- George R. Pritchard | Herkimer | 150 | Transient non-community | Groundwater |
| 34 | Htr Adirondacks | Herkimer | 145 | Transient non-community | Groundwater |
| 35 | Country Club Grille | Herkimer | 140 | Transient non-community | Groundwater |
| 36 | Ymca Camp Gorham | Herkimer | 138 | Transient non-community | Groundwater |
| 37 | Wall Street Meadows | Herkimer | 130 | Community | Groundwater |
| 38 | Nys-Hinckley Day Use Area | Herkimer | 125 | Transient non-community | Groundwater |
| 39 | Holiday Shores Estates | Herkimer | 125 | Community | Groundwater |
| 40 | Kenmore Cottages | Herkimer | 125 | Transient non-community | Groundwater |
| 41 | Cooperstown Koa | Herkimer | 120 | Transient non-community | Groundwater |
| 42 | Camp Mark Vii | Herkimer | 110 | Transient non-community | Groundwater |
| 43 | Manion Heights W.D. | Herkimer | 105 | Community | Purchased surface water |
| 44 | Herkimer Diamond Mines, Inc.. | Herkimer | 101 | Transient non-community | Groundwater |
| 45 | Maplewood Bbq & Spirits | Herkimer | 101 | Transient non-community | Groundwater |
| 46 | Mccauley Mtn. | Herkimer | 100 | Transient non-community | Groundwater |
| 47 | Viking Village | Herkimer | 100 | Transient non-community | Groundwater |
| 48 | Ilion Snow Drifters Club House | Herkimer | 100 | Transient non-community | Groundwater |
| 49 | Bella Vista Restaurant | Herkimer | 100 | Transient non-community | Groundwater |
| 50 | Covewood Lodge | Herkimer | 100 | Transient non-community | Groundwater |
All other water systems in Herkimer County (73)
The remaining active systems filed under Herkimer County, largest first, with the population each reports serving.
- North Woods Lodge & Resort100
- Eagle Bay Village100
- Frankfort Wd# 20100
- Crestwood Estates100
- Eagle Bay House, the98
- Frankfort Wd #390
- Little Moose Lodge88
- Little Fox, the85
- Waldheim, the85
- Willow View Estates84
- Bald Mt Colony80
- Ilion (South) Water District80
- Leatherstocking Community77
- Grygiels Pine Hills Golf Course75
- Mountainside Smokehouse75
- Van Hornesville Water District72
- Sunset View Mobile Home Park70
- Patty Jeans Country Restaurant70
- Adirondack Gateway Campground68
- David Moran Rec Bldg - Ohio (T)60
- Holland Heights Golf Course60
- Red Dog Tavern60
- Precisionmatics Co.60
- Stillwater Hotel53
- Ohio Tavern & Restaurant52
- Honnedaga Cottages50
- Salisbury Ridgerunners50
- Turner Camps, the50
- Stone Jug50
- Hollywood Hills Condo50
- Mister Shake50
- Lanterns, the (Litchfield)50
- Timber Lane Lodge MHP50
- Scenic View Campground50
- East Herkimer Sno-Riders50
- Bisby Cottages50
- Higby Club Water System50
- Saalty Dawg Saloon50
- Haskells Inn49
- Big Moose Station48
- Golf Club of Newport48
- Narrows Cottages, the46
- Frankfort Wd #845
- Fj Four Season Cottages, LLC40
- Country Meadows MHP36
- Eagle Bay Tavern32
- Jeannies Dream Motel30
- Christian Lake30
- Matteson Hotel30
- Daikers Brookside Lodging25
- Twisters Ice Cream25
- Up North Woodfire Bar & Grill25
- Root Farm, the25
- German Flatts Town Park25
- Covered Bridge Convenience25
- Herkimer Wd #4 (Lowes)25
- Rockys on the Lake25
- Fulton House, the25
- Nys-Fourth Lake Picnic Area25
- General Herkimer Homestead25
- Big Moose Lakeside25
- Boss General Store25
- Dollar General-Newport25
- Palmer Point Cottages25
- Cedarville Fire Department25
- Cedarville Country Store25
- Norway General Store25
- Norridgewock Iii25
- Spruce Creek Campground25
- Stillwater Shop25
- Rap Shaw Club25
- Homestead Mobile Home Community23
- Armstrong Trailer Park17
Herkimer County water systems: frequently asked questions
How many public water systems are in Herkimer County, New York?
EPA's SDWIS records file 123 active public water systems under Herkimer County, New York: 35 community systems (28%), 5 non-transient non-community systems (4.1%) and 83 transient non-community systems (67%).
Who supplies drinking water in Herkimer County, NY?
The largest community water systems filed under Herkimer County are Ilion (V) Water Works (8,053 people served), Herkimer Village (7,606 people served) and Little Falls City (4,605 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 Herkimer County's drinking water come from groundwater or surface water?
Of the 123 active public water systems in Herkimer County, 89% draw mainly on groundwater and 11% on surface water, counting purchased supplies. The largest system, Ilion (V) Water Works, uses surface water.
Where can I find a water quality report for Herkimer 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. 35 community systems are filed under Herkimer 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 Herkimer 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
- All New York public water systems· 8,167 active
- Rensselaer County· 146 systems
- Essex County· 137 systems
- Delaware County· 136 systems
- Oneida County· 128 systems
- Washington County· 118 systems
- Fulton County· 113 systems
- How to find out who supplies your drinking water
- How to find and read your annual water quality report
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 Herkimer County, New York”, https://aquacensus.com/water-systems/new-york/herkimer (data as of October 1, 2026).