Washakie County, Wyoming — public water systems
At a glance
13 active public water systems are filed under Washakie County, Wyoming in EPA's SDWIS records, together reporting 7,172 people served. The largest is Worland Utilities Commission, which reports serving 4,787 people. 4 are community water systems serving people where they live; the other 9 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
13
Population served
7.2K
Community systems
4
Groundwater share
100%
How does Washakie County compare with other Wyoming counties?
Washakie County has the 19th-most active public water systems among the 33 counties listed for active Wyoming systems in EPA records; among the 23 with 3 or more systems, the median has 27. Its systems report 7,172 people served in total, the 18th-largest county figure in the state and 1.1% of the statewide total. The average system here reports serving 552 people, about 34% below the Wyoming average of 838. 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 Washakie County's drinking water come from?
By primary water source, Washakie County's active systems draw on groundwater (11, 85%) and purchased groundwater (2, 15%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 83% and 17% across Wyoming. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Worland Utilities Commission, draws primarily on groundwater.
What kinds of water systems operate in Washakie County?
Washakie County's active systems break down as 4 community systems (31%), 1 non-transient non-community systems (7.7%) and 8 transient non-community systems (62%). 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 (62%), local government (23%), state government (7.7%) and federal government (7.7%).
Water systems in Washakie County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Worland Utilities Commission | Washakie | 4,787 | Community | Groundwater |
| 2 | Washakie Rural Water System | Washakie | 990 | Community | Purchased groundwater |
| 3 | Ten Sleep, Town of | Washakie | 400 | Community | Groundwater |
| 4 | Circle J Ranch | Washakie | 200 | Transient non-community | Groundwater |
| 5 | Red Vista & Ten Sleep Brewery Ws | Washakie | 173 | Transient non-community | Groundwater |
| 6 | Bighorn Resort LLC | Washakie + 1 more | 154 | Transient non-community | Groundwater |
| 7 | Wyoming Boys School | Washakie | 131 | Non-transient non-community | Purchased groundwater |
| 8 | Meadowlark Ski Resort | Washakie | 92 | Transient non-community | Groundwater |
| 9 | LDS Ten Sleep Meetinghouse | Washakie | 80 | Transient non-community | Groundwater |
| 10 | Blm-Middle Fork Powder Riv Cg | Washakie | 55 | Transient non-community | Groundwater |
| 11 | Deer Haven Lodge | Washakie | 50 | Transient non-community | Groundwater |
| 12 | Ten Sleep Rock Ranch | Washakie | 35 | Transient non-community | Groundwater |
| 13 | Big Horn Regional Jpb | Washakie | 25 | Community | Groundwater |
Washakie County water systems: frequently asked questions
How many public water systems are in Washakie County, Wyoming?
EPA's SDWIS records file 13 active public water systems under Washakie County, Wyoming: 4 community systems (31%), 1 non-transient non-community systems (7.7%) and 8 transient non-community systems (62%).
Who supplies drinking water in Washakie County, WY?
The largest community water systems filed under Washakie County are Worland Utilities Commission (4,787 people served), Washakie Rural Water System (990 people served) and Town of Ten Sleep (400 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 Washakie County's drinking water come from groundwater or surface water?
Of the 13 active public water systems in Washakie County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Worland Utilities Commission, uses groundwater.
Where can I find a water quality report for Washakie 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. 4 community systems are filed under Washakie 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 Washakie 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 Wyoming 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 Washakie County, Wyoming”, https://aquacensus.com/water-systems/wyoming/washakie (data as of October 1, 2026).