Adair County, Iowa — public water systems
At a glance
6 active public water systems are filed under Adair County, Iowa in EPA's SDWIS records, together reporting 7,600 people served. The largest is Greenfield Municipal Utilities, which reports serving 2,227 people. All 6 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
6
Population served
7.6K
Community systems
6
Groundwater share
16.7%
How does Adair County compare with other Iowa counties?
Adair County has the 81st-most active public water systems among the 114 counties listed for active Iowa systems in EPA records; among the 96 with 3 or more systems, the median has 14. Its systems report 7,600 people served in total, the 80th-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 1,267 people, about 26% below the Iowa average of 1,718. 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 Adair County's drinking water come from?
By primary water source, Adair County's active systems draw on purchased surface water (4, 67%), groundwater (1, 17%) and surface water (1, 17%). Overall, 17% rely mainly on groundwater (including purchased groundwater) and 83% on surface water, compared with 92% and 7.8% across Iowa. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Greenfield Municipal Utilities, draws primarily on surface water.
What kinds of water systems operate in Adair County?
Adair County's active systems break down as 6 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 (83%) and private (17%).
Water systems in Adair County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Greenfield Municipal Utilities | Adair | 2,227 | Community | Surface water |
| 2 | Stuart Water Supply | Adair | 1,814 | Community | Purchased surface water |
| 3 | Sirwa #1 (Greenfield) | Adair | 1,712 | Community | Purchased surface water |
| 4 | Adair Municipal Water Supply | Adair | 809 | Community | Groundwater |
| 5 | Fontanelle Water Works | Adair | 670 | Community | Purchased surface water |
| 6 | Orient Municipal Water Supply | Adair | 368 | Community | Purchased surface water |
Also serving Adair County
These systems serve several counties, including Adair County. EPA lists another county first for them, so they are not included in the counts above.
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Sirwa #2 (Creston) | Madison + 7 more | 20,793 | Community | Surface water |
Adair County water systems: frequently asked questions
How many public water systems are in Adair County, Iowa?
EPA's SDWIS records file 6 active public water systems under Adair County, Iowa: 6 community systems (100%). At least 1 more system is listed under another county but also serve Adair County.
Who supplies drinking water in Adair County, IA?
The largest community water systems filed under Adair County are Greenfield Municipal Utilities (2,227 people served), Stuart Water Supply (1,814 people served) and Sirwa #1 (Greenfield) (1,712 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 Adair County's drinking water come from groundwater or surface water?
Of the 6 active public water systems in Adair County, 17% draw mainly on groundwater and 83% on surface water, counting purchased supplies. The largest system, Greenfield Municipal Utilities, uses surface water.
Where can I find a water quality report for Adair 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. 6 community systems are filed under Adair 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 Adair 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 Iowa 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 Adair County, Iowa”, https://aquacensus.com/water-systems/iowa/adair (data as of October 1, 2026).