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Benton County, Missouri — public water systems

At a glance

83 active public water systems are filed under Benton County, Missouri in EPA's SDWIS records, together reporting 13,544 people served. The largest is Warsaw Pws, which reports serving 2,402 people. 25 are community water systems serving people where they live; the other 58 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

83

Population served

13.5K

Community systems

25

Groundwater share

98.8%

How does Benton County compare with other Missouri counties?

Benton County has the 6th-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 13,544 people served in total, the 63rd-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 163 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 Benton County's drinking water come from?

By primary water source, Benton County's active systems draw on groundwater (81, 98%), purchased surface water (1, 1.2%) and purchased groundwater (1, 1.2%). Overall, 99% rely mainly on groundwater (including purchased groundwater) and 1.2% 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, Warsaw Pws, draws primarily on groundwater.

What kinds of water systems operate in Benton County?

Benton County's active systems break down as 25 community systems (30%), 6 non-transient non-community systems (7.2%) and 52 transient non-community systems (63%). 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 (82%), federal government (7.2%), local government (7.2%) and state government (3.6%).

The 50 largest water systems in Benton County

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Active public water systems in Benton County, Missouri
#Water systemCountyPopulation servedTypeSource
1Warsaw PwsBenton2,402CommunityGroundwater
2Cole Camp PwsBenton1,150CommunityGroundwater
3Lincoln PwsBenton1,100CommunityGroundwater
4Warsaw R Ix High SchoolBenton605Non-transient non-communityGroundwater
5Sterett Creek VillageBenton505CommunityGroundwater
6Harry S Truman State Park CampgrdBenton500Transient non-communityGroundwater
7Mo American Whitebranch SubdBenton450CommunityGroundwater
8Winegars Teal Bend SubdBenton400CommunityGroundwater
9Warsaw R Ix South ElemBenton350Non-transient non-communityGroundwater
10Spring Branch WaterBenton273CommunityGroundwater
11Cedar Grove Baptist ChurchBenton250Transient non-communityGroundwater
12Sycamore Valley SubdBenton245CommunityGroundwater
13Keithley Beach SubdBenton240CommunityGroundwater
14Benton Ridge Rv ParkBenton238Transient non-communityGroundwater
15Reeds Rv Park and StorageBenton204Transient non-communityGroundwater
16Blue Branch Improvement Assn Inc.Benton200CommunityGroundwater
17The Missing WellBenton173CommunityPurchased surface water
18Paddlefish Rv ParkBenton165Transient non-communityGroundwater
19Braden Park VillageBenton153CommunityPurchased groundwater
20Grand River ResortBenton150Transient non-communityGroundwater
21Cole Turkey AcresBenton150CommunityGroundwater
22Regal Beloit America Inc.Benton140Non-transient non-communityGroundwater
23Pecan Grove CampgroundBenton125Transient non-communityGroundwater
24Oak Ridge AcresBenton120CommunityGroundwater
25Lake Ridge BayBenton120CommunityGroundwater
26Kolbs Lakeside Resort LLCBenton120Transient non-communityGroundwater
27Mo American Pom O Sa Heights SubdBenton119CommunityGroundwater
28Mclaughlins Anglers Retreat Rv ParkBenton110Transient non-communityGroundwater
29Cedar Gate EstatesBenton102CommunityGroundwater
30Usace Truman Thibaut PointBenton100Transient non-communityGroundwater
31Usace Truman Berry Bend NorthBenton100Transient non-communityGroundwater
32Clear Creek Rv ParkBenton100Transient non-communityGroundwater
33Usace Truman Osage Bluff PuaBenton100Transient non-communityGroundwater
34Truman Lake Resort LLCBenton100Transient non-communityGroundwater
35Southview Rv ParkBenton100CommunityGroundwater
36Edgewater Rv ParkBenton100Transient non-communityGroundwater
37Harry S Truman State Park OfficeBenton94Transient non-communityGroundwater
38Ionia PwsBenton88CommunityGroundwater
39Asianfy BistroBenton80Transient non-communityGroundwater
40Usace Truman Visitor CenterBenton75Transient non-communityGroundwater
41T & M Landworks LLCBenton75Transient non-communityGroundwater
42Abundant Life Christian ChurchBenton75Transient non-communityGroundwater
43Rv There YetBenton72Transient non-communityGroundwater
44City Union MissionBenton70Non-transient non-communityGroundwater
45Anglers Retreat Rv Park on Mm HwyBenton63Transient non-communityGroundwater
46Heits Point Lutheran Camp System 1Benton60Transient non-communityGroundwater
47Hidden Valley MHP LLCBenton60CommunityGroundwater
48Harry S Truman State Park MarinaBenton58Transient non-communityGroundwater
49Usace Truman Shawnee BendBenton50Non-transient non-communityGroundwater
50Central Mo Comm Action Warsaw Head StartBenton50Transient non-communityGroundwater

All other water systems in Benton County (33)

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

Benton County water systems: frequently asked questions

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

EPA's SDWIS records file 83 active public water systems under Benton County, Missouri: 25 community systems (30%), 6 non-transient non-community systems (7.2%) and 52 transient non-community systems (63%).

Who supplies drinking water in Benton County, MO?

The largest community water systems filed under Benton County are Warsaw Pws (2,402 people served), Cole Camp Pws (1,150 people served) and Lincoln Pws (1,100 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 Benton County's drinking water come from groundwater or surface water?

Of the 83 active public water systems in Benton County, 99% draw mainly on groundwater and 1.2% on surface water, counting purchased supplies. The largest system, Warsaw Pws, uses groundwater.

Where can I find a water quality report for Benton 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. 25 community systems are filed under Benton 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 Benton 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 Benton County, Missouri”, https://aquacensus.com/water-systems/missouri/benton (data as of October 1, 2026).