Ringgold County, Iowa — public water systems
At a glance
3 active public water systems are filed under Ringgold County, Iowa in EPA's SDWIS records, together reporting 2,268 people served. The largest is Mount Ayr Water Treatment Plant, which reports serving 1,683 people. All 3 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
3
Population served
2.3K
Community systems
3
Groundwater share
0%
How does Ringgold County compare with other Iowa counties?
Ringgold County has the 93rd-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 2,268 people served in total, the 99th-largest county figure in the state and less than 0.1% of the statewide total. The average system here reports serving 756 people, about 56% 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 Ringgold County's drinking water come from?
By primary water source, Ringgold County's active systems draw on purchased surface water (3, 100%). Overall, none rely mainly on groundwater (including purchased groundwater) and all 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, Mount Ayr Water Treatment Plant, draws primarily on purchased surface water.
What kinds of water systems operate in Ringgold County?
Ringgold County's active systems break down as 3 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 (100%).
Water systems in Ringgold County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Mount Ayr Water Treatment Plant | Ringgold | 1,683 | Community | Purchased surface water |
| 2 | Diagonal Water Department | Ringgold | 338 | Community | Purchased surface water |
| 3 | Kellerton Water Supply | Ringgold | 247 | Community | Purchased surface water |
Also serving Ringgold County
These systems serve several counties, including Ringgold 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 |
Ringgold County water systems: frequently asked questions
How many public water systems are in Ringgold County, Iowa?
EPA's SDWIS records file 3 active public water systems under Ringgold County, Iowa: 3 community systems (100%). At least 1 more system is listed under another county but also serve Ringgold County.
Who supplies drinking water in Ringgold County, IA?
The largest community water systems filed under Ringgold County are Mount Ayr Water Treatment Plant (1,683 people served), Diagonal Water Department (338 people served) and Kellerton Water Supply (247 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 Ringgold County's drinking water come from groundwater or surface water?
Of the 3 active public water systems in Ringgold County, none draw mainly on groundwater and all on surface water, counting purchased supplies. The largest system, Mount Ayr Water Treatment Plant, uses purchased surface water.
Where can I find a water quality report for Ringgold 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. 3 community systems are filed under Ringgold 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 Ringgold 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 Ringgold County, Iowa”, https://aquacensus.com/water-systems/iowa/ringgold (data as of October 1, 2026).