Rock County, Minnesota — public water systems
At a glance
8 active public water systems are filed under Rock County, Minnesota in EPA's SDWIS records, together reporting 9,495 people served. The largest is Luverne, which reports serving 4,946 people. All 8 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
8
Population served
9.5K
Community systems
8
Groundwater share
62.5%
How does Rock County compare with other Minnesota counties?
Rock County has the 87th-most active public water systems among the 94 counties listed for active Minnesota systems in EPA records; among the 87 with 3 or more systems, the median has 49. Its systems report 9,495 people served in total, the 61st-largest county figure in the state and 0.2% of the statewide total. The average system here reports serving 1,187 people, about 45% above the Minnesota average of 820. 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 Rock County's drinking water come from?
By primary water source, Rock County's active systems draw on purchased groundwater (4, 50%), purchased surface water (3, 38%) and groundwater (1, 13%). Overall, 63% rely mainly on groundwater (including purchased groundwater) and 38% on surface water, compared with 98% and 1.5% across Minnesota. Purchased groundwater means the system buys groundwater from another public water system rather than drawing its own. The county's largest system, Luverne, draws primarily on groundwater.
What kinds of water systems operate in Rock County?
Rock County's active systems break down as 8 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 Rock County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Luverne | Rock | 4,946 | Community | Groundwater |
| 2 | Rock County Rural Water System | Rock | 2,919 | Community | Purchased surface water |
| 3 | Hills | Rock | 685 | Community | Purchased groundwater |
| 4 | Beaver Creek | Rock | 297 | Community | Purchased surface water |
| 5 | Magnolia | Rock | 214 | Community | Purchased surface water |
| 6 | Hardwick | Rock | 198 | Community | Purchased groundwater |
| 7 | Steen | Rock | 180 | Community | Purchased groundwater |
| 8 | Kenneth | Rock | 56 | Community | Purchased groundwater |
Rock County water systems: frequently asked questions
How many public water systems are in Rock County, Minnesota?
EPA's SDWIS records file 8 active public water systems under Rock County, Minnesota: 8 community systems (100%).
Who supplies drinking water in Rock County, MN?
The largest community water systems filed under Rock County are Luverne (4,946 people served), Rock County Rural Water System (2,919 people served) and Hills (685 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 Rock County's drinking water come from groundwater or surface water?
Of the 8 active public water systems in Rock County, 63% draw mainly on groundwater and 38% on surface water, counting purchased supplies. The largest system, Luverne, uses groundwater.
Where can I find a water quality report for Rock 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. 8 community systems are filed under Rock 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 Rock 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 Minnesota 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 Rock County, Minnesota”, https://aquacensus.com/water-systems/minnesota/rock (data as of October 1, 2026).