Walsh County, North Dakota — public water systems
At a glance
5 active public water systems are filed under Walsh County, North Dakota in EPA's SDWIS records, together reporting 9,366 people served. The largest is City of Grafton, which reports serving 4,284 people. 4 are community water systems serving people where they live; the other 1 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
5
Population served
9.4K
Community systems
4
Groundwater share
80%
How does Walsh County compare with other North Dakota counties?
Walsh County has the 35th-most active public water systems among the 61 counties listed for active North Dakota systems in EPA records; among the 49 with 3 or more systems, the median has 6. Its systems report 9,366 people served in total, the 15th-largest county figure in the state and 1.2% of the statewide total. The average system here reports serving 1,873 people, roughly in line with the North Dakota average of 1,864. 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 Walsh County's drinking water come from?
By primary water source, Walsh County's active systems draw on purchased groundwater (2, 40%), groundwater (2, 40%) and surface water (1, 20%). Overall, 80% rely mainly on groundwater (including purchased groundwater) and 20% on surface water, compared with 74% and 26% across North Dakota. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. The county's largest system, City of Grafton, draws primarily on surface water.
What kinds of water systems operate in Walsh County?
Walsh County's active systems break down as 4 community systems (80%) and 1 non-transient non-community systems (20%). 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. EPA lists their owner types as local government (80%) and private (20%).
Water systems in Walsh County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Grafton City of | Walsh | 4,284 | Community | Surface water |
| 2 | Walsh Rural Water District | Walsh | 3,000 | Community | Purchased groundwater |
| 3 | Park River City of | Walsh | 1,403 | Community | Groundwater |
| 4 | Minto City of | Walsh | 604 | Community | Purchased groundwater |
| 5 | Fordville Public School | Walsh | 75 | Non-transient non-community | Groundwater |
Walsh County water systems: frequently asked questions
How many public water systems are in Walsh County, North Dakota?
EPA's SDWIS records file 5 active public water systems under Walsh County, North Dakota: 4 community systems (80%) and 1 non-transient non-community systems (20%).
Who supplies drinking water in Walsh County, ND?
The largest community water systems filed under Walsh County are City of Grafton (4,284 people served), Walsh Rural Water District (3,000 people served) and City of Park River (1,403 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 Walsh County's drinking water come from groundwater or surface water?
Of the 5 active public water systems in Walsh County, 80% draw mainly on groundwater and 20% on surface water, counting purchased supplies. The largest system, City of Grafton, uses surface water.
Where can I find a water quality report for Walsh 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. 4 community systems are filed under Walsh 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 Walsh 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 North Dakota 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 Walsh County, North Dakota”, https://aquacensus.com/water-systems/north-dakota/walsh (data as of October 1, 2026).