Hopkins County, Kentucky — public water systems
At a glance
10 active public water systems are filed under Hopkins County, Kentucky in EPA's SDWIS records, together reporting 57,432 people served. The largest is Madisonville Light & Water, which reports serving 28,102 people. All 10 are community water systems serving people where they live.
Dataset updated . Source: EPA SDWIS/ECHO, refreshed quarterly.
Active systems
10
Population served
57.4K
Community systems
10
Groundwater share
20%
How does Hopkins County compare with other Kentucky counties?
Hopkins County has the 5th-most active public water systems among the 127 counties listed for active Kentucky systems in EPA records; among the 66 with 3 or more systems, the median has 4. Its systems report 57,432 people served in total, the 16th-largest county figure in the state and 1.1% of the statewide total. The average system here reports serving 5,743 people, about half of the Kentucky average of 11,699. 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 Hopkins County's drinking water come from?
By primary water source, Hopkins County's active systems draw on purchased surface water (6, 60%), groundwater (2, 20%) and surface water (2, 20%). Overall, 20% rely mainly on groundwater (including purchased groundwater) and 80% on surface water, compared with 31% and 69% across Kentucky. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. The county's largest system, Madisonville Light & Water, draws primarily on surface water.
What kinds of water systems operate in Hopkins County?
Hopkins County's active systems break down as 10 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 Hopkins County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Madisonville Light & Water | Hopkins | 28,102 | Community | Surface water |
| 2 | South Hopkins Water District | Hopkins | 8,440 | Community | Purchased surface water |
| 3 | Nebo Water District | Hopkins | 4,702 | Community | Purchased surface water |
| 4 | North Hopkins Water District | Hopkins | 3,725 | Community | Purchased surface water |
| 5 | Dawson Springs Water & Sewer | Hopkins | 2,631 | Community | Surface water |
| 6 | Nortonville Water Works | Hopkins | 2,611 | Community | Groundwater |
| 7 | Hanson Water System | Hopkins | 2,157 | Community | Purchased surface water |
| 8 | White Plains Water System | Hopkins | 1,871 | Community | Groundwater |
| 9 | Earlington Water & Sewer | Hopkins | 1,708 | Community | Purchased surface water |
| 10 | Mortons Gap Water Department | Hopkins | 1,485 | Community | Purchased surface water |
Hopkins County water systems: frequently asked questions
How many public water systems are in Hopkins County, Kentucky?
EPA's SDWIS records file 10 active public water systems under Hopkins County, Kentucky: 10 community systems (100%).
Who supplies drinking water in Hopkins County, KY?
The largest community water systems filed under Hopkins County are Madisonville Light & Water (28,102 people served), South Hopkins Water District (8,440 people served) and Nebo Water District (4,702 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 Hopkins County's drinking water come from groundwater or surface water?
Of the 10 active public water systems in Hopkins County, 20% draw mainly on groundwater and 80% on surface water, counting purchased supplies. The largest system, Madisonville Light & Water, uses surface water.
Where can I find a water quality report for Hopkins 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 Hopkins 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 Hopkins 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 Kentucky 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 Hopkins County, Kentucky”, https://aquacensus.com/water-systems/kentucky/hopkins (data as of October 1, 2026).