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Spink County, South Dakota — public water systems

At a glance

10 active public water systems are filed under Spink County, South Dakota in EPA's SDWIS records, together reporting 3,485 people served. The largest is Redfield, which reports serving 2,214 people. All 10 are community water systems serving people where they live.

Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.

Active systems

10

Population served

3.5K

Community systems

10

Groundwater share

30%

How does Spink County compare with other South Dakota counties?

Spink County has the 11th-most active public water systems among the 73 counties listed for active South Dakota systems in EPA records; among the 48 with 3 or more systems, the median has 6. Its systems report 3,485 people served in total, the 36th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 349 people, well below the South Dakota average of 1,387. 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 Spink County's drinking water come from?

By primary water source, Spink County's active systems draw on purchased surface water (7, 70%) and groundwater (3, 30%). Overall, 30% rely mainly on groundwater (including purchased groundwater) and 70% on surface water, compared with 76% and 24% across South Dakota. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Redfield, draws primarily on purchased surface water.

What kinds of water systems operate in Spink County?

Spink County's active systems break down as 10 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 (70%) and private (30%).

Water systems in Spink County

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Active public water systems in Spink County, South Dakota
#Water systemCountyPopulation servedTypeSource
1RedfieldSpink2,214CommunityPurchased surface water
2TulareSpink211CommunityPurchased surface water
3MelletteSpink205CommunityPurchased surface water
4DolandSpink199CommunityPurchased surface water
5NorthvilleSpink143CommunityPurchased surface water
6CondeSpink142CommunityPurchased surface water
7Spink ColonySpink108CommunityGroundwater
8Glendale ColonySpink95CommunityGroundwater
9BrentfordSpink88CommunityPurchased surface water
10Camrose ColonySpink80CommunityGroundwater

Also serving Spink County

These systems serve several counties, including Spink County. EPA lists another county first for them, so they are not included in the counts above.

Multi-county water systems that also serve Spink County, South Dakota
Water systemCountyPopulation servedTypeSource
Web Water Development AssociationWalworth + 9 more20,750CommunitySurface water

Spink County water systems: frequently asked questions

How many public water systems are in Spink County, South Dakota?

EPA's SDWIS records file 10 active public water systems under Spink County, South Dakota: 10 community systems (100%). At least 1 more system is listed under another county but also serve Spink County.

Who supplies drinking water in Spink County, SD?

The largest community water systems filed under Spink County are Redfield (2,214 people served), Tulare (211 people served) and Mellette (205 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 Spink County's drinking water come from groundwater or surface water?

Of the 10 active public water systems in Spink County, 30% draw mainly on groundwater and 70% on surface water, counting purchased supplies. The largest system, Redfield, uses purchased surface water.

Where can I find a water quality report for Spink 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. 10 community systems are filed under Spink 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 Spink 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 South 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 Spink County, South Dakota”, https://aquacensus.com/water-systems/south-dakota/spink (data as of October 1, 2026).