Bremer County, Iowa — public water systems
At a glance
16 active public water systems are filed under Bremer County, Iowa in EPA's SDWIS records, together reporting 56,553 people served. The largest is Ia Regional Utilities Assoc (Waverly), which reports serving 37,820 people. 10 are community water systems serving people where they live; the other 6 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
16
Population served
56.6K
Community systems
10
Groundwater share
100%
How does Bremer County compare with other Iowa counties?
Bremer County has the 38th-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 56,553 people served in total, the 12th-largest county figure in the state and 1.8% of the statewide total. The average system here reports serving 3,535 people, about twice 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 Bremer County's drinking water come from?
By primary water source, Bremer County's active systems draw on groundwater (15, 94%) and purchased groundwater (1, 6.3%). 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, Ia Regional Utilities Assoc (Waverly), draws primarily on groundwater.
What kinds of water systems operate in Bremer County?
Bremer County's active systems break down as 10 community systems (63%) and 6 transient non-community systems (38%). 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 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 (63%) and private (38%).
Water systems in Bremer County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Ia Regional Utilities Assoc (Waverly) | Bremer + 7 more | 37,820 | Community | Groundwater |
| 2 | Waverly Water Department | Bremer | 10,394 | Community | Groundwater |
| 3 | Sumner Water Supply | Bremer | 2,030 | Community | Groundwater |
| 4 | Denver Water Supply | Bremer | 1,919 | Community | Groundwater |
| 5 | Tripoli Water Supply | Bremer | 1,191 | Community | Groundwater |
| 6 | Janesville Water Supply | Bremer | 1,034 | Community | Purchased groundwater |
| 7 | Readlyn Water Supply | Bremer | 845 | Community | Groundwater |
| 8 | Camp Ingawanis-Maple and Ranger Well | Bremer | 402 | Transient non-community | Groundwater |
| 9 | Plainfield Water Supply | Bremer | 393 | Community | Groundwater |
| 10 | Meadow Lane Mobile Home Park | Bremer | 168 | Community | Groundwater |
| 11 | Saints Avenue Apartments | Bremer | 125 | Community | Groundwater |
| 12 | Heritage Global Methodist Church | Bremer | 100 | Transient non-community | Groundwater |
| 13 | Cliffs Place Inc. | Bremer | 51 | Transient non-community | Groundwater |
| 14 | North Woods Park | Bremer | 31 | Transient non-community | Groundwater |
| 15 | North Cedar Park | Bremer | 25 | Transient non-community | Groundwater |
| 16 | Alcock Park | Bremer | 25 | Transient non-community | Groundwater |
Bremer County water systems: frequently asked questions
How many public water systems are in Bremer County, Iowa?
EPA's SDWIS records file 16 active public water systems under Bremer County, Iowa: 10 community systems (63%) and 6 transient non-community systems (38%).
Who supplies drinking water in Bremer County, IA?
The largest community water systems filed under Bremer County are Ia Regional Utilities Assoc (Waverly) (37,820 people served), Waverly Water Department (10,394 people served) and Sumner Water Supply (2,030 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 Bremer County's drinking water come from groundwater or surface water?
Of the 16 active public water systems in Bremer County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Ia Regional Utilities Assoc (Waverly), uses groundwater.
Where can I find a water quality report for Bremer 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 Bremer 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 Bremer 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 Bremer County, Iowa”, https://aquacensus.com/water-systems/iowa/bremer (data as of October 1, 2026).