Humboldt County, Nevada — public water systems
At a glance
27 active public water systems are filed under Humboldt County, Nevada in EPA's SDWIS records, together reporting 13,801 people served. The largest is City of Winnemucca, which reports serving 8,518 people. 7 are community water systems serving people where they live; the other 20 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
27
Population served
13.8K
Community systems
7
Groundwater share
100%
How does Humboldt County compare with other Nevada counties?
Humboldt County has the 8th-most active public water systems among the 47 counties listed for active Nevada systems in EPA records; among the 22 with 3 or more systems, the median has 14. Its systems report 13,801 people served in total, the 10th-largest county figure in the state and 0.4% of the statewide total. The average system here reports serving 511 people, well below the Nevada average of 5,508. 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 Humboldt County's drinking water come from?
By primary water source, Humboldt County's active systems draw on groundwater (27, 100%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 88% and 12% across Nevada. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, City of Winnemucca, draws primarily on groundwater.
What kinds of water systems operate in Humboldt County?
Humboldt County's active systems break down as 7 community systems (26%), 11 non-transient non-community systems (41%) and 9 transient non-community systems (33%). 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 non-transient non-community water system regularly serves at least 25 of the same people for more than six months a year, but not where they live. Schools, factories, office buildings and hospitals with their own supply are typical examples. 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 private (63%), local government (26%), federal government (7.4%) and state government (3.7%).
Water systems in Humboldt County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Winnemucca City of | Humboldt | 8,518 | Community | Groundwater |
| 2 | Gold Country Estates | Humboldt | 1,695 | Community | Groundwater |
| 3 | Nevada Gold Mines Twin Creeks | Humboldt | 600 | Non-transient non-community | Groundwater |
| 4 | Nevada Gold Mines Turquoise Ridge | Humboldt | 480 | Non-transient non-community | Groundwater |
| 5 | Marigold Mine Potable Water System | Humboldt | 450 | Non-transient non-community | Groundwater |
| 6 | Ndot Valmy Roadside Park Rp809hu | Humboldt | 367 | Transient non-community | Groundwater |
| 7 | Star City Properties | Humboldt | 285 | Community | Groundwater |
| 8 | Golconda Gid | Humboldt | 210 | Community | Groundwater |
| 9 | Mcdermitt Water System | Humboldt | 200 | Community | Groundwater |
| 10 | Orovada Water District | Humboldt | 200 | Community | Groundwater |
| 11 | Valmy Station Mobile Home Park | Humboldt | 96 | Community | Groundwater |
| 12 | Hycroft Resources & Development LLC | Humboldt | 90 | Non-transient non-community | Groundwater |
| 13 | Community Hall Paradise Valley | Humboldt | 72 | Transient non-community | Groundwater |
| 14 | P and L Denio Junction Rv Park | Humboldt | 65 | Non-transient non-community | Groundwater |
| 15 | North Valmy Power Plant | Humboldt | 60 | Non-transient non-community | Groundwater |
| 16 | Royal Peacock Rv Park | Humboldt | 53 | Transient non-community | Groundwater |
| 17 | Css Farms LLC | Humboldt | 50 | Non-transient non-community | Groundwater |
| 18 | Valmy Chevron | Humboldt | 45 | Transient non-community | Groundwater |
| 19 | Paradise Valley Park | Humboldt | 40 | Transient non-community | Groundwater |
| 20 | Diamond Plastics | Humboldt | 38 | Non-transient non-community | Groundwater |
| 21 | Paradise Valley Elementary | Humboldt | 35 | Non-transient non-community | Groundwater |
| 22 | Kings River Elementary School | Humboldt | 27 | Non-transient non-community | Groundwater |
| 23 | Virgin Valley Campground Fws | Humboldt | 25 | Transient non-community | Groundwater |
| 24 | A1 Fuel Stop | Humboldt | 25 | Transient non-community | Groundwater |
| 25 | Denio Junction | Humboldt | 25 | Transient non-community | Groundwater |
| 26 | Lone Tree Mine | Humboldt | 25 | Non-transient non-community | Groundwater |
| 27 | Lye Creek Campground Usfs | Humboldt | 25 | Transient non-community | Groundwater |
Humboldt County water systems: frequently asked questions
How many public water systems are in Humboldt County, Nevada?
EPA's SDWIS records file 27 active public water systems under Humboldt County, Nevada: 7 community systems (26%), 11 non-transient non-community systems (41%) and 9 transient non-community systems (33%).
Who supplies drinking water in Humboldt County, NV?
The largest community water systems filed under Humboldt County are City of Winnemucca (8,518 people served), Gold Country Estates (1,695 people served) and Star City Properties (285 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 Humboldt County's drinking water come from groundwater or surface water?
Of the 27 active public water systems in Humboldt County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, City of Winnemucca, uses groundwater.
Where can I find a water quality report for Humboldt 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. 7 community systems are filed under Humboldt 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 Humboldt 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 Nevada 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 Humboldt County, Nevada”, https://aquacensus.com/water-systems/nevada/humboldt (data as of October 1, 2026).