McKinley County, New Mexico — public water systems
At a glance
27 active public water systems are filed under McKinley County, New Mexico in EPA's SDWIS records, together reporting 33,611 people served. The largest is Gallup Water System, which reports serving 20,880 people. 16 are community water systems serving people where they live; the other 11 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
33.6K
Community systems
16
Groundwater share
100%
How does McKinley County compare with other New Mexico counties?
McKinley County has the 14th-most active public water systems among the 49 counties listed for active New Mexico systems in EPA records; among the 31 with 3 or more systems, the median has 23. Its systems report 33,611 people served in total, the 13th-largest county figure in the state and 1.5% of the statewide total. The average system here reports serving 1,245 people, about 34% below the New Mexico average of 1,885. 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 McKinley County's drinking water come from?
By primary water source, McKinley County's active systems draw on groundwater (26, 96%) and purchased groundwater (1, 3.7%). Overall, all rely mainly on groundwater (including purchased groundwater) and none on surface water, compared with 93% and 7.2% across New Mexico. Groundwater means the system draws its water from wells or springs fed by underground aquifers. The county's largest system, Gallup Water System, draws primarily on groundwater.
What kinds of water systems operate in McKinley County?
McKinley County's active systems break down as 16 community systems (59%), 3 non-transient non-community systems (11%) and 8 transient non-community systems (30%). 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 (30%) and state government (7.4%).
Water systems in McKinley County
🔒 Create a free account to export CSV| # | Water system | County | Population served | Type | Source |
|---|---|---|---|---|---|
| 1 | Gallup Water System | McKinley | 20,880 | Community | Groundwater |
| 2 | Manuelito Rest Area | McKinley | 2,501 | Transient non-community | Groundwater |
| 3 | Gamerco Water & Sanitation | McKinley | 1,744 | Community | Purchased groundwater |
| 4 | Gallup Port of Entry | McKinley | 1,500 | Transient non-community | Groundwater |
| 5 | St Bonaventure Mission | McKinley | 1,350 | Transient non-community | Groundwater |
| 6 | Thoreau Water & Sanitation District | McKinley | 1,173 | Community | Groundwater |
| 7 | Speedys Black Hat Store | McKinley | 800 | Transient non-community | Groundwater |
| 8 | Ramah Water & Sanitation District | McKinley | 517 | Community | Groundwater |
| 9 | Yah Ta Hey W & Sd | McKinley | 435 | Community | Groundwater |
| 10 | Whispering Cedars Water Association | McKinley | 425 | Community | Groundwater |
| 11 | White Cliffs Mdwua | McKinley | 323 | Community | Groundwater |
| 12 | Broken Arrow Bible Ranch | McKinley | 300 | Transient non-community | Groundwater |
| 13 | El Segundo Site | McKinley | 238 | Non-transient non-community | Groundwater |
| 14 | Top of the World Water Association Corp | McKinley | 177 | Community | Groundwater |
| 15 | Kamp Kiwanis | McKinley | 150 | Transient non-community | Groundwater |
| 16 | El Sabino Store | McKinley | 150 | Transient non-community | Groundwater |
| 17 | Lee Ranch Mine | McKinley | 135 | Non-transient non-community | Groundwater |
| 18 | Bluewater Lake Mdwca | McKinley | 135 | Community | Groundwater |
| 19 | Coal Basin Dwua | McKinley | 116 | Community | Groundwater |
| 20 | D & S Trailer Ranch | McKinley | 109 | Community | Groundwater |
| 21 | T & R Market Water Supply | McKinley | 100 | Non-transient non-community | Groundwater |
| 22 | Block A Well Co-Op | McKinley | 92 | Community | Groundwater |
| 23 | St Williams Mobile Home Park | McKinley | 82 | Community | Groundwater |
| 24 | Cedar Ridge Trailer Park | McKinley | 65 | Community | Groundwater |
| 25 | Sagebrush Water Co-Op | McKinley | 54 | Community | Groundwater |
| 26 | Manuelito Navajo Childrens Home | McKinley | 35 | Community | Groundwater |
| 27 | Jem Trading | McKinley | 25 | Transient non-community | Groundwater |
McKinley County water systems: frequently asked questions
How many public water systems are in McKinley County, New Mexico?
EPA's SDWIS records file 27 active public water systems under McKinley County, New Mexico: 16 community systems (59%), 3 non-transient non-community systems (11%) and 8 transient non-community systems (30%).
Who supplies drinking water in McKinley County, NM?
The largest community water systems filed under McKinley County are Gallup Water System (20,880 people served), Gamerco Water & Sanitation (1,744 people served) and Thoreau Water & Sanitation District (1,173 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 McKinley County's drinking water come from groundwater or surface water?
Of the 27 active public water systems in McKinley County, all draw mainly on groundwater and none on surface water, counting purchased supplies. The largest system, Gallup Water System, uses groundwater.
Where can I find a water quality report for McKinley 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. 16 community systems are filed under McKinley 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 McKinley 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 New Mexico water systems
- All New Mexico public water systems· 1,165 active
- San Miguel County· 42 systems
- Grant County· 28 systems
- Eddy County· 28 systems
- Valencia County· 28 systems
- Torrance County· 27 systems
- Lea County· 23 systems
- 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 McKinley County, New Mexico”, https://aquacensus.com/water-systems/new-mexico/mckinley (data as of October 1, 2026).