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Marquette County, Wisconsin — public water systems

At a glance

157 active public water systems are filed under Marquette County, Wisconsin in EPA's SDWIS records, together reporting 18,458 people served. The largest is Wi Dot Rest Area 81 Southbound, which reports serving 1,400 people. 5 are community water systems serving people where they live; the other 152 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

157

Population served

18.5K

Community systems

5

Groundwater share

100%

How does Marquette County compare with other Wisconsin counties?

Marquette County has the 30th-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 18,458 people served in total, the 50th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 118 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 Marquette County's drinking water come from?

By primary water source, Marquette County's active systems draw on groundwater (157, 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, Wi Dot Rest Area 81 Southbound, draws primarily on groundwater.

What kinds of water systems operate in Marquette County?

Marquette County's active systems break down as 5 community systems (3.2%), 12 non-transient non-community systems (7.6%) and 140 transient non-community systems (89%). 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 (90%), local government (8.3%) and state government (1.3%).

The 50 largest water systems in Marquette County

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Active public water systems in Marquette County, Wisconsin
#Water systemCountyPopulation servedTypeSource
1Wi Dot Rest Area 81 SouthboundMarquette1,400Transient non-communityGroundwater
2Wi Dot Rest Area 82 NorthboundMarquette1,350Transient non-communityGroundwater
3Montello WaterworksMarquette1,329CommunityGroundwater
4Mcdonalds WestfieldMarquette1,040Non-transient non-communityGroundwater
5Kwik Trip #1722Marquette999Transient non-communityGroundwater
6Brakebush Bros Inc.Marquette898Non-transient non-communityGroundwater
7Burger King WestfieldMarquette535Non-transient non-communityGroundwater
8Pioneer Westfield High SchMarquette500Non-transient non-communityGroundwater
9St James Cath ChMarquette401Transient non-communityGroundwater
10St James Cath Ch HallMarquette401Transient non-communityGroundwater
11Westfield Elementary SchMarquette350Non-transient non-communityGroundwater
12Exxon-Mobil WestfieldMarquette305Transient non-communityGroundwater
13St Marys Catholic ChMarquette300Transient non-communityGroundwater
14Immanuel Lutheran ChMarquette275Transient non-communityGroundwater
15Oxford ElementaryMarquette240Non-transient non-communityGroundwater
16Zion Lutheran ChMarquette204Transient non-communityGroundwater
17Crooked River Cmpgd MainMarquette200Transient non-communityGroundwater
18Good Shepherd Catholic ChMarquette200Transient non-communityGroundwater
19Foxtail Gentlemans ClubMarquette165Transient non-communityGroundwater
20FoxysMarquette150Transient non-communityGroundwater
21Kwik Trip #1721Marquette150Transient non-communityGroundwater
22White Lk Beach Supper ClubMarquette150Transient non-communityGroundwater
23Westfield Super ValueMarquette150Transient non-communityGroundwater
24Oxford Bible ChMarquette130Transient non-communityGroundwater
25Paradise PinesMarquette115Transient non-communityGroundwater
26Dammas DinerMarquette115Non-transient non-communityGroundwater
27Crossroads Family Care CenterMarquette115Transient non-communityGroundwater
28Lake of the Woods Cmpgd Campsites OnlyMarquette114Transient non-communityGroundwater
29Pine Lake Camp Shower HouseMarquette110Transient non-communityGroundwater
30Pine Lake Camp Birch CabinsMarquette110Transient non-communityGroundwater
31Pine Lake Camp Amphlett HallMarquette110Transient non-communityGroundwater
32Pine Lake Camp Rustic Hand PumpMarquette110Transient non-communityGroundwater
33Pine Lake Camp WildwoodMarquette110Transient non-communityGroundwater
34Mecan River Outfitters & LodgeMarquette105Transient non-communityGroundwater
35Trinity United Methodist ChMarquette100Transient non-communityGroundwater
36Thal Acres Links & LanesMarquette100Transient non-communityGroundwater
37Wilderness Cmpgd Ee AreaMarquette100Transient non-communityGroundwater
38Endeavor ElementaryMarquette100Non-transient non-communityGroundwater
39Lake Arrowhead Cmpgd EMarquette100Transient non-communityGroundwater
40Camp Wakonda Kitchen Shower BldgMarquette100Transient non-communityGroundwater
41Faith United Methodist ChMarquette100Transient non-communityGroundwater
42St Johns Ev Lutheran ChMarquette100Transient non-communityGroundwater
43Sky Lodge Cc CottonwoodMarquette100Transient non-communityGroundwater
44Sky Lodge Cc Camper PkMarquette100Transient non-communityGroundwater
45Sky Lodge Cc Old CabinsMarquette100Transient non-communityGroundwater
46Sky Lodge Cc Main ComplexMarquette100Transient non-communityGroundwater
47Sky Lodge Cc Staff CabinsMarquette100Transient non-communityGroundwater
48Duck Inn MHP 1Marquette95Transient non-communityGroundwater
49American Legion Post 351Marquette85Transient non-communityGroundwater
50School House TavernMarquette81Transient non-communityGroundwater

All other water systems in Marquette County (107)

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

Marquette County water systems: frequently asked questions

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

EPA's SDWIS records file 157 active public water systems under Marquette County, Wisconsin: 5 community systems (3.2%), 12 non-transient non-community systems (7.6%) and 140 transient non-community systems (89%).

Who supplies drinking water in Marquette County, WI?

The largest community water systems filed under Marquette County are Montello Waterworks (1,329 people served), Fox Marquette Mobile Home Park (72 people served) and Lily Meadows Assisted Living (50 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 Marquette County's drinking water come from groundwater or surface water?

Of the 157 active public water systems in Marquette County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Wi Dot Rest Area 81 Southbound, uses groundwater.

Where can I find a water quality report for Marquette 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. 5 community systems are filed under Marquette 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 Marquette 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 Marquette County, Wisconsin”, https://aquacensus.com/water-systems/wisconsin/marquette (data as of October 1, 2026).