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Wilson County, Missouri — public water systems

At a glance

4 active public water systems are filed under Wilson County, Missouri in EPA's SDWIS records, together reporting 1,770 people served. The largest is C Willow Water, which reports serving 855 people. All 4 are community water systems serving people where they live.

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

Active systems

4

Population served

1.8K

Community systems

4

Groundwater share

100%

How does Wilson County compare with other Missouri counties?

Wilson County has the 123rd-most active public water systems among the 182 counties listed for active Missouri systems in EPA records; among the 132 with 3 or more systems, the median has 13. Its systems report 1,770 people served in total, the 124th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 443 people, well below the Missouri average of 2,049. 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 Wilson County's drinking water come from?

By primary water source, Wilson County's active systems draw on groundwater (4, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 8.1% across Missouri. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, C Willow Water, draws primarily on groundwater.

What kinds of water systems operate in Wilson County?

Wilson County's active systems break down as 4 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 private (100%).

Water systems in Wilson County

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Active public water systems in Wilson County, Missouri
#Water systemCountyPopulation servedTypeSource
1C Willow WaterWilson855CommunityGroundwater
2Shady Oaks WaterWilson432CommunityGroundwater
3Hickory Hill WaterWilson342CommunityGroundwater
4Arrowhead Water SystemWilson141CommunityGroundwater

Wilson County water systems: frequently asked questions

How many public water systems are in Wilson County, Missouri?

EPA's SDWIS records file 4 active public water systems under Wilson County, Missouri: 4 community systems (100%).

Who supplies drinking water in Wilson County, MO?

The largest community water systems filed under Wilson County are C Willow Water (855 people served), Shady Oaks Water (432 people served) and Hickory Hill Water (342 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 Wilson County's drinking water come from groundwater or surface water?

Of the 4 active public water systems in Wilson County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, C Willow Water, uses groundwater.

Where can I find a water quality report for Wilson 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 Wilson 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 Wilson 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 Missouri 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 Wilson County, Missouri”, https://aquacensus.com/water-systems/missouri/wilson (data as of October 1, 2026).