Yukon-Koyukuk Census Area County, Alaska — public water systems
At a glance
34 active public water systems are filed under Yukon-Koyukuk Census Area County, Alaska in EPA's SDWIS records, together reporting 6,119 people served. The largest is Ft. Yukon Public Water System, which reports serving 665 people. 27 are community water systems serving people where they live; the other 7 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
34
Population served
6.1K
Community systems
27
Groundwater share
82.4%
How does Yukon-Koyukuk Census Area County compare with other Alaska counties?
Yukon-Koyukuk Census Area County has the 10th-most active public water systems among the 25 counties listed for active Alaska systems in EPA records; among the 24 with 3 or more systems, the median has 23. Its systems report 6,119 people served in total, the 19th-largest county figure in the state and 0.7% of the statewide total. The average system here reports serving 180 people, well below the Alaska average of 653. 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 Yukon-Koyukuk Census Area County's drinking water come from?
By primary water source, Yukon-Koyukuk Census Area County's active systems draw on groundwater (23, 68%), surface water (6, 18%) and groundwater under influence of surface water (5, 15%). Overall, 82% rely mainly on groundwater (including purchased groundwater) and 18% on surface water, compared with 84% and 16% across Alaska. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Ft. Yukon Public Water System, draws primarily on groundwater under influence of surface water.
What kinds of water systems operate in Yukon-Koyukuk Census Area County?
Yukon-Koyukuk Census Area County's active systems break down as 27 community systems (79%), 2 non-transient non-community systems (5.9%) and 5 transient non-community systems (15%). 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 Native American (79%), private (12%), local government (2.9%) and federal government (2.9%).
Water systems in Yukon-Koyukuk Census Area County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Ft. Yukon Public Water System | Yukon-Koyukuk Census Area | 665 | Community | Groundwater under influence of surface water |
| 2 | Galena Wtp1 - City | Yukon-Koyukuk Census Area | 490 | Community | Groundwater |
| 3 | Nenana Municipal Water | Yukon-Koyukuk Census Area | 486 | Community | Groundwater |
| 4 | Mcgrath Water System | Yukon-Koyukuk Census Area | 341 | Community | Surface water |
| 5 | Huslia Public Water System | Yukon-Koyukuk Census Area | 323 | Community | Groundwater |
| 6 | Galena Wtp2 - Gila | Yukon-Koyukuk Census Area | 290 | Community | Groundwater |
| 7 | Too'Gha Inc. - in Tanana | Yukon-Koyukuk Census Area | 271 | Community | Surface water |
| 8 | Nulato River Well | Yukon-Koyukuk Census Area | 245 | Community | Groundwater |
| 9 | Ruby Water System | Yukon-Koyukuk Census Area | 215 | Community | Groundwater |
| 10 | Kaltag Public Water System | Yukon-Koyukuk Census Area | 214 | Community | Groundwater under influence of surface water |
| 11 | Grayling Water System | Yukon-Koyukuk Census Area | 207 | Community | Surface water |
| 12 | Minto Community Water System | Yukon-Koyukuk Census Area | 205 | Community | Groundwater |
| 13 | Holy Cross Water System | Yukon-Koyukuk Census Area | 182 | Community | Groundwater |
| 14 | Venetie Water System | Yukon-Koyukuk Census Area | 181 | Community | Groundwater under influence of surface water |
| 15 | Arctic Village Water System | Yukon-Koyukuk Census Area | 175 | Community | Surface water |
| 16 | Allakaket Public Water System | Yukon-Koyukuk Census Area | 135 | Community | Groundwater |
| 17 | Blm Arctic Interagency Visitor Center | Yukon-Koyukuk Census Area | 130 | Transient non-community | Groundwater |
| 18 | Coldfoot Cafe | Yukon-Koyukuk Census Area | 120 | Transient non-community | Groundwater |
| 19 | The Inn at Coldfoot | Yukon-Koyukuk Census Area | 120 | Transient non-community | Groundwater |
| 20 | Circle Washeteria | Yukon-Koyukuk Census Area | 110 | Community | Groundwater |
| 21 | Hughes Public Water Supply | Yukon-Koyukuk Census Area | 107 | Community | Groundwater under influence of surface water |
| 22 | Anvik Water System | Yukon-Koyukuk Census Area | 96 | Community | Groundwater |
| 23 | Manley Community Water System | Yukon-Koyukuk Census Area | 95 | Community | Groundwater |
| 24 | Rampart Washeteria | Yukon-Koyukuk Census Area | 88 | Community | Groundwater |
| 25 | Koyukuk Safewater Facility | Yukon-Koyukuk Census Area | 85 | Community | Groundwater |
| 26 | Beaver Water System | Yukon-Koyukuk Census Area | 80 | Community | Groundwater |
| 27 | Monroes Monderosa | Yukon-Koyukuk Census Area | 78 | Transient non-community | Groundwater |
| 28 | Chalkyitsik Village Water | Yukon-Koyukuk Census Area | 76 | Community | Surface water |
| 29 | Takotna Water System | Yukon-Koyukuk Census Area | 70 | Community | Surface water |
| 30 | Shageluk Water System | Yukon-Koyukuk Census Area | 60 | Community | Groundwater |
| 31 | Yukon River Camp | Yukon-Koyukuk Census Area | 59 | Transient non-community | Groundwater |
| 32 | Yksd - Allakaket School | Yukon-Koyukuk Census Area | 52 | Non-transient non-community | Groundwater under influence of surface water |
| 33 | Yksd - Merreline Kangas / Ruby | Yukon-Koyukuk Census Area | 40 | Non-transient non-community | Groundwater |
| 34 | Stevens Village Water System | Yukon-Koyukuk Census Area | 28 | Community | Groundwater |
Yukon-Koyukuk Census Area County water systems: frequently asked questions
How many public water systems are in Yukon-Koyukuk Census Area County, Alaska?
EPA's SDWIS records file 34 active public water systems under Yukon-Koyukuk Census Area County, Alaska: 27 community systems (79%), 2 non-transient non-community systems (5.9%) and 5 transient non-community systems (15%).
Who supplies drinking water in Yukon-Koyukuk Census Area County, AK?
The largest community water systems filed under Yukon-Koyukuk Census Area County are Ft. Yukon Public Water System (665 people served), Galena Wtp1 - City (490 people served) and Nenana Municipal Water (486 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 Yukon-Koyukuk Census Area County's drinking water come from groundwater or surface water?
Of the 34 active public water systems in Yukon-Koyukuk Census Area County, 82% draw mainly on groundwater and 18% on surface water, counting purchased supplies. The largest system, Ft. Yukon Public Water System, uses groundwater under influence of surface water.
Where can I find a water quality report for Yukon-Koyukuk Census Area 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. 27 community systems are filed under Yukon-Koyukuk Census Area 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 Yukon-Koyukuk Census Area 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 Alaska water systems
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- How to find out who supplies your drinking water
- How to find and read your annual water quality report
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 Yukon-Koyukuk Census Area County, Alaska”, https://aquacensus.com/water-systems/alaska/yukon-koyukuk-census-area (data as of October 1, 2026).