Carroll County, Iowa — public water systems
At a glance
13 active public water systems are filed under Carroll County, Iowa in EPA's SDWIS records, together reporting 19,740 people served. The largest is Carroll Municipal Water Supply, which reports serving 10,184 people. All 13 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
13
Population served
19.7K
Community systems
13
Groundwater share
100%
How does Carroll County compare with other Iowa counties?
Carroll County has the 49th-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 19,740 people served in total, the 30th-largest county figure in the state and 0.6% of the statewide total. The average system here reports serving 1,519 people, about 12% 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 Carroll County's drinking water come from?
By primary water source, Carroll County's active systems draw on groundwater (7, 54%) and purchased groundwater (6, 46%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 92% and 7.8% across Iowa. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Carroll Municipal Water Supply, draws primarily on groundwater.
What kinds of water systems operate in Carroll County?
Carroll County's active systems break down as 13 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 (92%) and private (7.7%).
Water systems in Carroll County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Carroll Municipal Water Supply | Carroll | 10,184 | Community | Groundwater |
| 2 | West Central Rwa - Nish System | Carroll | 3,573 | Community | Groundwater |
| 3 | Manning Water Supply | Carroll | 1,392 | Community | Groundwater |
| 4 | Coon Rapids Municipal Utilities | Carroll | 1,242 | Community | Groundwater |
| 5 | Glidden Water Supply | Carroll | 1,140 | Community | Groundwater |
| 6 | Arcadia Water Supply | Carroll | 525 | Community | Purchased groundwater |
| 7 | Breda Water Supply | Carroll | 502 | Community | Groundwater |
| 8 | Templeton Water Supply | Carroll | 352 | Community | Purchased groundwater |
| 9 | Halbur Water Supply | Carroll | 249 | Community | Purchased groundwater |
| 10 | Dedham Water Supply | Carroll | 221 | Community | Purchased groundwater |
| 11 | Lidderdale Water Supply | Carroll | 166 | Community | Purchased groundwater |
| 12 | Lanesboro Water Works | Carroll | 119 | Community | Purchased groundwater |
| 13 | Ralston Water Treatment Plant | Carroll | 75 | Community | Groundwater |
Carroll County water systems: frequently asked questions
How many public water systems are in Carroll County, Iowa?
EPA's SDWIS records file 13 active public water systems under Carroll County, Iowa: 13 community systems (100%).
Who supplies drinking water in Carroll County, IA?
The largest community water systems filed under Carroll County are Carroll Municipal Water Supply (10,184 people served), West Central Rwa - Nish System (3,573 people served) and Manning Water Supply (1,392 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 Carroll County's drinking water come from groundwater or surface water?
Of the 13 active public water systems in Carroll County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Carroll Municipal Water Supply, uses groundwater.
Where can I find a water quality report for Carroll 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. 13 community systems are filed under Carroll 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 Carroll 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 Carroll County, Iowa”, https://aquacensus.com/water-systems/iowa/carroll (data as of October 1, 2026).