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Osage County, Missouri — public water systems

At a glance

13 active public water systems are filed under Osage County, Missouri in EPA's SDWIS records, together reporting 8,225 people served. The largest is Osage County Pwsd 3, which reports serving 2,800 people. 10 are community water systems serving people where they live; the other 3 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

13

Population served

8.2K

Community systems

10

Groundwater share

100%

How does Osage County compare with other Missouri counties?

Osage County has the 64th-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 8,225 people served in total, the 85th-largest county figure in the state and 0.1% of the statewide total. The average system here reports serving 633 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 Osage County's drinking water come from?

By primary water source, Osage County's active systems draw on groundwater (13, 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, Osage County Pwsd 3, draws primarily on groundwater.

What kinds of water systems operate in Osage County?

Osage County's active systems break down as 10 community systems (77%), 2 non-transient non-community systems (15%) and 1 transient non-community systems (7.7%). 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 local government (69%) and private (31%).

Water systems in Osage County

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Active public water systems in Osage County, Missouri
#Water systemCountyPopulation servedTypeSource
1Osage County Pwsd 3Osage2,800CommunityGroundwater
2Linn PwsOsage1,500CommunityGroundwater
3Osage Co Pwsd 1Osage1,221CommunityGroundwater
4Osage County Pwsd 2 NorthOsage705CommunityGroundwater
5Osage County Pwsd 2 SouthOsage468CommunityGroundwater
6Freeburg PwsOsage450CommunityGroundwater
7Chamois PwsOsage396CommunityGroundwater
8Diamond Pet FoodsOsage230Non-transient non-communityGroundwater
9Meta PwsOsage210CommunityGroundwater
10Frankenstein PwsOsage130CommunityGroundwater
11Rise AcademyOsage60Non-transient non-communityGroundwater
12Mari Osa DeltaOsage30Transient non-communityGroundwater
13Linn Acres Mobile Home ParkOsage25CommunityGroundwater

Also serving Osage County

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

Multi-county water systems that also serve Osage County, Missouri
Water systemCountyPopulation servedTypeSource
Belle PwsMaries + 1 more1,300CommunityGroundwater
Osage County Pwsd 4Maries + 1 more357CommunityGroundwater

Osage County water systems: frequently asked questions

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

EPA's SDWIS records file 13 active public water systems under Osage County, Missouri: 10 community systems (77%), 2 non-transient non-community systems (15%) and 1 transient non-community systems (7.7%). At least 2 more systems are listed under another county but also serve Osage County.

Who supplies drinking water in Osage County, MO?

The largest community water systems filed under Osage County are Osage County Pwsd 3 (2,800 people served), Linn Pws (1,500 people served) and Osage Co Pwsd 1 (1,221 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 Osage County's drinking water come from groundwater or surface water?

Of the 13 active public water systems in Osage County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Osage County Pwsd 3, uses groundwater.

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