Foster County, North Dakota — public water systems
At a glance
3 active public water systems are filed under Foster County, North Dakota in EPA's SDWIS records, together reporting 2,611 people served. The largest is City of Carrington, which reports serving 2,065 people. All 3 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
3
Population served
2.6K
Community systems
3
Groundwater share
100%
How does Foster County compare with other North Dakota counties?
Foster County has the 41st-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 2,611 people served in total, the 28th-largest county figure in the state and 0.3% of the statewide total. The average system here reports serving 870 people, about half of 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 Foster County's drinking water come from?
By primary water source, Foster County's active systems draw on purchased groundwater (2, 67%) and groundwater (1, 33%). Overall, all rely mainly on groundwater (including purchased groundwater) and none 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 Carrington, draws primarily on groundwater.
What kinds of water systems operate in Foster County?
Foster County's active systems break down as 3 community systems (100%). 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. EPA lists their owner types as local government (67%) and private (33%).
Water systems in Foster County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Carrington City of | Foster | 2,065 | Community | Groundwater |
| 2 | Greater Ramsey Wd - Carrington | Foster | 455 | Community | Purchased groundwater |
| 3 | Glenfield City of | Foster | 91 | Community | Purchased groundwater |
Foster County water systems: frequently asked questions
How many public water systems are in Foster County, North Dakota?
EPA's SDWIS records file 3 active public water systems under Foster County, North Dakota: 3 community systems (100%).
Who supplies drinking water in Foster County, ND?
The largest community water systems filed under Foster County are City of Carrington (2,065 people served), Greater Ramsey Wd - Carrington (455 people served) and City of Glenfield (91 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 Foster County's drinking water come from groundwater or surface water?
Of the 3 active public water systems in Foster County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, City of Carrington, uses groundwater.
Where can I find a water quality report for Foster 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. 3 community systems are filed under Foster 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 Foster 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
- All North Dakota public water systems· 403 active
- Otter Tail County· 4 systems
- Mountrail County· 4 systems
- Bowman County· 3 systems
- Divide County· 3 systems
- Golden Valley County· 3 systems
- Hettinger County· 3 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 Foster County, North Dakota”, https://aquacensus.com/water-systems/north-dakota/foster (data as of October 1, 2026).