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Vilas County, Wisconsin — public water systems

At a glance

460 active public water systems are filed under Vilas County, Wisconsin in EPA's SDWIS records, together reporting 42,009 people served. The largest is Eagle River Waterworks, which reports serving 1,530 people. 12 are community water systems serving people where they live; the other 448 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

460

Population served

42K

Community systems

12

Groundwater share

100%

How does Vilas County compare with other Wisconsin counties?

Vilas County has the 2nd-most active public water systems among the 90 counties listed for active Wisconsin systems in EPA records; among the 74 with 3 or more systems, the median has 140. Its systems report 42,009 people served in total, the 27th-largest county figure in the state and 0.8% of the statewide total. The average system here reports serving 91 people, well below the Wisconsin average of 469. 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 Vilas County's drinking water come from?

By primary water source, Vilas County's active systems draw on groundwater (460, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 99% and 0.6% across Wisconsin. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Eagle River Waterworks, draws primarily on groundwater.

What kinds of water systems operate in Vilas County?

Vilas County's active systems break down as 12 community systems (2.6%), 9 non-transient non-community systems (2%) and 439 transient non-community systems (95%). 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 (82%), state government (12%), local government (5%) and federal government (0.7%).

The 50 largest water systems in Vilas County

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Active public water systems in Vilas County, Wisconsin
#Water systemCountyPopulation servedTypeSource
1Eagle River WaterworksVilas1,530CommunityGroundwater
2Arbor Vitae Woodruff El SchVilas575Non-transient non-communityGroundwater
3Phelps Sanitary DistrictVilas550CommunityGroundwater
4Wi Dnr Crystal Lk ShowerVilas540Transient non-communityGroundwater
5Land O Lakes Sanitary DistVilas450CommunityGroundwater
6Camp Ramah Girls WellVilas400Transient non-communityGroundwater
7Camp Ramah OfficeVilas400Transient non-communityGroundwater
8Camp Ramah Bet AmVilas400Transient non-communityGroundwater
9Wi Dnr Crystal Lk Cmpgd 407Vilas350Transient non-communityGroundwater
10Wi Dnr Muskellunge Lk Cmpgd 329Vilas350Transient non-communityGroundwater
11Wi Dnr Crystal Lk Cmpgd 9Vilas350Transient non-communityGroundwater
12Wi Dnr Crystal Lk Cmpgd 12Vilas350Transient non-communityGroundwater
13Wi Dnr Muskellunge Lk Cmpgd 15Vilas350Transient non-communityGroundwater
14Wi Dnr Muskellunge Lk Cmpgd 13Vilas350Transient non-communityGroundwater
15Wi Dnr Crystal Lk Picnic 5Vilas350Transient non-communityGroundwater
16Agave AzulVilas311Transient non-communityGroundwater
17Buckatabon Lodge LighthouseVilas300Transient non-communityGroundwater
18Sunrise Lodge RestaurantVilas300Transient non-communityGroundwater
19Buckatabon Lodge PumphouseVilas300Transient non-communityGroundwater
20Nineteenth HoleVilas300Transient non-communityGroundwater
21Pioneer Lake Lutheran ChurchVilas300Transient non-communityGroundwater
22Buckatabon Lodge ClubhouseVilas300Transient non-communityGroundwater
23Buckatabon Lodge ShowersVilas300Transient non-communityGroundwater
24Wi Dnr Crystal Muskie Con StaVilas300Transient non-communityGroundwater
25Eagle River Rec Assn ConcessionsVilas300Transient non-communityGroundwater
26Wi Dnr Firefly Lake Campground ShowerVilas300Transient non-communityGroundwater
27Dietz GasVilas300Transient non-communityGroundwater
28Camp Ojibwa 2Vilas275Transient non-communityGroundwater
29Camp Ojibwa 1Vilas275Transient non-communityGroundwater
30Wi Dnr Firefly Lk Cmpgd 59Vilas250Transient non-communityGroundwater
31Wi Dnr Firefly Lk Cmpgd 61Vilas250Transient non-communityGroundwater
32Wi Dnr Firefly Lk Cmpgd 60Vilas250Transient non-communityGroundwater
33Granary RestaurantVilas250Transient non-communityGroundwater
34Camp Marimeta Showerhouse LaundryVilas250Transient non-communityGroundwater
35Camp Interlaken Recreation HallVilas250Transient non-communityGroundwater
36Camp Interlaken OldVilas250Transient non-communityGroundwater
37Little Saint Express MartVilas250Transient non-communityGroundwater
38Wi Dnr Firefly Lk Cmpgd 62Vilas250Transient non-communityGroundwater
39Wi Dnr Muskellung Lk Cmpgd ShowerVilas250Transient non-communityGroundwater
40Camp MarimetaVilas250Transient non-communityGroundwater
41Wi Dnr Firefly Lk Cmpgd 64Vilas250Transient non-communityGroundwater
42Wi Dnr Trout Lk N Cmpgd 51Vilas240Transient non-communityGroundwater
43Wi Dnr Trout Lk N Cmpgd 52Vilas240Transient non-communityGroundwater
44Wi Dnr Trout Lk Cathedral PtVilas240Transient non-communityGroundwater
45Wi Dnr Trout Lk N Cmpgd 50Vilas240Transient non-communityGroundwater
46Wi Dnr Trout Lk South Cmpgd Site 1009Vilas240Transient non-communityGroundwater
47Wi Dnr Trout Lk Nat Trl 65Vilas240Transient non-communityGroundwater
48Camp Manito-Wish Ymca KitchenVilas225Transient non-communityGroundwater
49Camp Manito-Wish Ymca MainVilas225Transient non-communityGroundwater
50Wi Dnr Razorback Lk Cmpgd 16Vilas210Transient non-communityGroundwater

All other water systems in Vilas County (410)

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

Vilas County water systems: frequently asked questions

How many public water systems are in Vilas County, Wisconsin?

EPA's SDWIS records file 460 active public water systems under Vilas County, Wisconsin: 12 community systems (2.6%), 9 non-transient non-community systems (2%) and 439 transient non-community systems (95%).

Who supplies drinking water in Vilas County, WI?

The largest community water systems filed under Vilas County are Eagle River Waterworks (1,530 people served), Phelps Sanitary District (550 people served) and Land O Lakes Sanitary Dist (450 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 Vilas County's drinking water come from groundwater or surface water?

Of the 460 active public water systems in Vilas County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Eagle River Waterworks, uses groundwater.

Where can I find a water quality report for Vilas 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. 12 community systems are filed under Vilas 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 Vilas 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 Wisconsin 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 Vilas County, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/vilas (data as of October 1, 2026).